556172330 has 16 divisors (see below), whose sum is σ = 1144126080. Its totient is φ = 190687632.

The previous prime is 556172297. The next prime is 556172347. The reversal of 556172330 is 33271655.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3972590 + ... + 3972729.

It is an arithmetic number, because the mean of its divisors is an integer number (71507880).

Almost surely, 2^556172330 is an apocalyptic number.

556172330 is an abundant number, since it is smaller than the sum of its proper divisors (587953750).

556172330 is a wasteful number, since it uses less digits than its factorization.

556172330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945333.

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 556172330 is about 23583.3061719514. The cubic root of 556172330 is about 822.3747982485.

The spelling of 556172330 in words is "five hundred fifty-six million, one hundred seventy-two thousand, three hundred thirty".