56990085 has 32 divisors (see below), whose sum is σ = 93795840. Its totient is φ = 29534208.

The previous prime is 56990083. The next prime is 56990111. The reversal of 56990085 is 58009965.

56990085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56990085 - 2¹ = 56990083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56990083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161269 + ... + 161621.

It is an arithmetic number, because the mean of its divisors is an integer number (2931120).

Almost surely, 2^56990085 is an apocalyptic number.

It is an amenable number.

56990085 is a deficient number, since it is larger than the sum of its proper divisors (36805755).

56990085 is a wasteful number, since it uses less digits than its factorization.

56990085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 56990085 is about 7549.1777697972. The cubic root of 56990085 is about 384.8277972789.

The spelling of 56990085 in words is "fifty-six million, nine hundred ninety thousand, eighty-five".