556256690 has 32 divisors (see below), whose sum is σ = 1097146944. Its totient is φ = 201375040.

The previous prime is 556256689. The next prime is 556256737. The reversal of 556256690 is 96652655.

556256690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×556256690² = 618843010339512200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13832 + ... + 36108.

It is an arithmetic number, because the mean of its divisors is an integer number (34285842).

Almost surely, 2^556256690 is an apocalyptic number.

556256690 is a deficient number, since it is larger than the sum of its proper divisors (540890254).

556256690 is a wasteful number, since it uses less digits than its factorization.

556256690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22522.

The product of its (nonzero) digits is 486000, while the sum is 44.

The square root of 556256690 is about 23585.0946574314. The cubic root of 556256690 is about 822.4163753083.

The spelling of 556256690 in words is "five hundred fifty-six million, two hundred fifty-six thousand, six hundred ninety".