556423025 has 12 divisors (see below), whose sum is σ = 690995952. Its totient is φ = 444473040.

The previous prime is 556423019. The next prime is 556423027. The reversal of 556423025 is 520324655.

It is not a de Polignac number, because 556423025 - 2¹⁸ = 556160881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556422982 and 556423000.

It is not an unprimeable number, because it can be changed into a prime (556423027) 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, 782 + ... + 33368.

It is an arithmetic number, because the mean of its divisors is an integer number (57582996).

Almost surely, 2^556423025 is an apocalyptic number.

It is an amenable number.

556423025 is a deficient number, since it is larger than the sum of its proper divisors (134572927).

556423025 is a wasteful number, since it uses less digits than its factorization.

556423025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33280 (or 33275 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 556423025 is about 23588.6206676016. The cubic root of 556423025 is about 822.4983416602.

The spelling of 556423025 in words is "five hundred fifty-six million, four hundred twenty-three thousand, twenty-five".