56308690 has 8 divisors (see below), whose sum is σ = 101355660. Its totient is φ = 22523472.

The previous prime is 56308687. The next prime is 56308697. The reversal of 56308690 is 9680365.

It can be written as a sum of positive squares in 2 ways, for example, as 55785961 + 522729 = 7469^2 + 723^2 .

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

It is a super-2 number, since 2×56308690² = 6341337139032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56308697) 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, 2815425 + ... + 2815444.

Almost surely, 2^56308690 is an apocalyptic number.

56308690 is a deficient number, since it is larger than the sum of its proper divisors (45046970).

56308690 is a wasteful number, since it uses less digits than its factorization.

56308690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630876.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 56308690 is about 7503.9116466014. The cubic root of 56308690 is about 383.2879282495.

The spelling of 56308690 in words is "fifty-six million, three hundred eight thousand, six hundred ninety".