556268025 has 24 divisors (see below), whose sum is σ = 920701984. Its totient is φ = 296352000.

The previous prime is 556268021. The next prime is 556268057. The reversal of 556268025 is 520862655.

It is a happy number.

It is not a de Polignac number, because 556268025 - 2² = 556268021 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556268021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75297 + ... + 82353.

Almost surely, 2^556268025 is an apocalyptic number.

It is an amenable number.

556268025 is a deficient number, since it is larger than the sum of its proper divisors (364433959).

556268025 is a wasteful number, since it uses less digits than its factorization.

556268025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121 (or 8116 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 556268025 is about 23585.3349562816. The cubic root of 556268025 is about 822.4219614741.

The spelling of 556268025 in words is "five hundred fifty-six million, two hundred sixty-eight thousand, twenty-five".