56329690 has 8 divisors (see below), whose sum is σ = 101393460. Its totient is φ = 22531872.

The previous prime is 56329681. The next prime is 56329711. The reversal of 56329690 is 9692365.

It can be written as a sum of positive squares in 2 ways, for example, as 53772889 + 2556801 = 7333^2 + 1599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×56329690² = 6346067950992200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2816475 + ... + 2816494.

Almost surely, 2^56329690 is an apocalyptic number.

56329690 is a deficient number, since it is larger than the sum of its proper divisors (45063770).

56329690 is a wasteful number, since it uses less digits than its factorization.

56329690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632976.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 56329690 is about 7505.3107863699. The cubic root of 56329690 is about 383.3355706654.

The spelling of 56329690 in words is "fifty-six million, three hundred twenty-nine thousand, six hundred ninety".