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2500255211 = 20551121661
BaseRepresentation
bin1001010100000110…
…1101110111101011
320110020200010100212
42111001231313223
520110031131321
61052033051335
7115646550536
oct22501556753
96406603325
102500255211
111073368823
125993b6b4b
1330acbb66c
1419a0b9a1d
15e977b55b
hex9506ddeb

2500255211 has 4 divisors (see below), whose sum is σ = 2500397424. Its totient is φ = 2500113000.

The previous prime is 2500255187. The next prime is 2500255243. The reversal of 2500255211 is 1125520052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2500255211 is a prime.

It is a super-2 number, since 2×25002552112 = 12502552240265309042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500255291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40280 + ... + 81381.

It is an arithmetic number, because the mean of its divisors is an integer number (625099356).

Almost surely, 22500255211 is an apocalyptic number.

2500255211 is a deficient number, since it is larger than the sum of its proper divisors (142213).

2500255211 is a wasteful number, since it uses less digits than its factorization.

2500255211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142212.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2500255211 is about 50002.5520448707. The cubic root of 2500255211 is about 1357.2549900083.

Adding to 2500255211 its reverse (1125520052), we get a palindrome (3625775263).

The spelling of 2500255211 in words is "two billion, five hundred million, two hundred fifty-five thousand, two hundred eleven".

Divisors: 1 20551 121661 2500255211