56169290 has 16 divisors (see below), whose sum is σ = 101191680. Its totient is φ = 22448400.

The previous prime is 56169287. The next prime is 56169313. The reversal of 56169290 is 9296165.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

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, 18071 + ... + 20949.

It is an arithmetic number, because the mean of its divisors is an integer number (6324480).

Almost surely, 2^56169290 is an apocalyptic number.

56169290 is a deficient number, since it is larger than the sum of its proper divisors (45022390).

56169290 is a wasteful number, since it uses less digits than its factorization.

56169290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 56169290 is about 7494.6174018425. The cubic root of 56169290 is about 382.9713726737.

The spelling of 56169290 in words is "fifty-six million, one hundred sixty-nine thousand, two hundred ninety".