556230645 has 32 divisors (see below), whose sum is σ = 1001082240. Its totient is φ = 296650512.

The previous prime is 556230637. The next prime is 556230659. The reversal of 556230645 is 546032655.

It is a happy number.

556230645 is a `hidden beast` number, since 5 + 5 + 6 + 2 + 3 + 0 + 645 = 666.

It is not a de Polignac number, because 556230645 - 2³ = 556230637 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14499 + ... + 36368.

It is an arithmetic number, because the mean of its divisors is an integer number (31283820).

Almost surely, 2^556230645 is an apocalyptic number.

It is an amenable number.

556230645 is a deficient number, since it is larger than the sum of its proper divisors (444851595).

556230645 is an frugal number, since it uses more digits than its factorization.

556230645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50893 (or 50875 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 556230645 is about 23584.5425013927. The cubic root of 556230645 is about 822.4035394064.

The spelling of 556230645 in words is "five hundred fifty-six million, two hundred thirty thousand, six hundred forty-five".