56990810 has 8 divisors (see below), whose sum is σ = 102583476. Its totient is φ = 22796320.

The previous prime is 56990809. The next prime is 56990819. The reversal of 56990810 is 1809965.

It can be written as a sum of positive squares in 2 ways, for example, as 52954729 + 4036081 = 7277^2 + 2009^2 .

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

It is a super-2 number, since 2×56990810² = 6495904848912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56990819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849531 + ... + 2849550.

Almost surely, 2^56990810 is an apocalyptic number.

56990810 is a deficient number, since it is larger than the sum of its proper divisors (45592666).

56990810 is a wasteful number, since it uses less digits than its factorization.

56990810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699088.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 56990810 is about 7549.2257881189. The cubic root of 56990810 is about 384.8294291357.

The spelling of 56990810 in words is "fifty-six million, nine hundred ninety thousand, eight hundred ten".