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2201255125 = 5317610041
BaseRepresentation
bin1000001100110100…
…0111110011010101
312200102001100100121
42003031013303111
514002010131000
61002232311541
7105356234266
oct20315076325
95612040317
102201255125
11a2a607613
125152425b1
13291080a34
1416c4c696d
15cd3b8b1a
hex83347cd5

2201255125 has 8 divisors (see below), whose sum is σ = 2747166552. Its totient is φ = 1761004000.

The previous prime is 2201255123. The next prime is 2201255129. The reversal of 2201255125 is 5215521022.

2201255125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18309841 + 2182945284 = 4279^2 + 46722^2 .

It is not a de Polignac number, because 2201255125 - 21 = 2201255123 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201255125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201255123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8804896 + ... + 8805145.

It is an arithmetic number, because the mean of its divisors is an integer number (343395819).

Almost surely, 22201255125 is an apocalyptic number.

2201255125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2201255125 is a deficient number, since it is larger than the sum of its proper divisors (545911427).

2201255125 is an equidigital number, since it uses as much as digits as its factorization.

2201255125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17610056 (or 17610046 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2201255125 is about 46917.5353679197. The cubic root of 2201255125 is about 1300.8387338973.

Adding to 2201255125 its reverse (5215521022), we get a palindrome (7416776147).

The spelling of 2201255125 in words is "two billion, two hundred one million, two hundred fifty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 17610041 88050205 440251025 2201255125