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2555200405 = 5511040081
BaseRepresentation
bin1001100001001101…
…0100001110010101
320121002001122000001
42120103110032111
520213112403110
61101314451301
7120214562602
oct23023241625
96532048001
102555200405
1110a138697a
125b3893b31
133194b8904
141a34dd6a9
15ee4d163a
hex984d4395

2555200405 has 4 divisors (see below), whose sum is σ = 3066240492. Its totient is φ = 2044160320.

The previous prime is 2555200399. The next prime is 2555200441. The reversal of 2555200405 is 5040025552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1906020964 + 649179441 = 43658^2 + 25479^2 .

It is not a de Polignac number, because 2555200405 - 223 = 2546811797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255520036 + ... + 255520045.

It is an arithmetic number, because the mean of its divisors is an integer number (766560123).

Almost surely, 22555200405 is an apocalyptic number.

It is an amenable number.

2555200405 is a deficient number, since it is larger than the sum of its proper divisors (511040087).

2555200405 is an equidigital number, since it uses as much as digits as its factorization.

2555200405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511040086.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 2555200405 is about 50548.9901481721. The cubic root of 2555200405 is about 1367.1253066731.

Adding to 2555200405 its reverse (5040025552), we get a palindrome (7595225957).

The spelling of 2555200405 in words is "two billion, five hundred fifty-five million, two hundred thousand, four hundred five".

Divisors: 1 5 511040081 2555200405