255565051 has 16 divisors (see below), whose sum is σ = 300480768. Its totient is φ = 212839200.

The previous prime is 255565019. The next prime is 255565061. The reversal of 255565051 is 150565552.

It is not a de Polignac number, because 255565051 - 2⁵ = 255565019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255564998 and 255565016.

It is not an unprimeable number, because it can be changed into a prime (255565061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31836 + ... + 39046.

It is an arithmetic number, because the mean of its divisors is an integer number (18780048).

Almost surely, 2^255565051 is an apocalyptic number.

255565051 is a deficient number, since it is larger than the sum of its proper divisors (44915717).

255565051 is an equidigital number, since it uses as much as digits as its factorization.

255565051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7362.

The product of its (nonzero) digits is 37500, while the sum is 34.

The square root of 255565051 is about 15986.4020655055. The cubic root of 255565051 is about 634.6006135516.

The spelling of 255565051 in words is "two hundred fifty-five million, five hundred sixty-five thousand, fifty-one".