557256025 has 12 divisors (see below), whose sum is σ = 714825900. Its totient is φ = 430431680.

The previous prime is 557256023. The next prime is 557256047. The reversal of 557256025 is 520652755.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 58537801 + 498718224 = 7651^2 + 22332^2 .

It is not a de Polignac number, because 557256025 - 2¹ = 557256023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (557256023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383590 + ... + 385039.

It is an arithmetic number, because the mean of its divisors is an integer number (59568825).

Almost surely, 2^557256025 is an apocalyptic number.

It is an amenable number.

557256025 is a deficient number, since it is larger than the sum of its proper divisors (157569875).

557256025 is a wasteful number, since it uses less digits than its factorization.

557256025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768668 (or 768663 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 557256025 is about 23606.2708829667. The cubic root of 557256025 is about 822.9085807961.

The spelling of 557256025 in words is "five hundred fifty-seven million, two hundred fifty-six thousand, twenty-five".