56797990 has 16 divisors (see below), whose sum is σ = 102393360. Its totient is φ = 22684320.

The previous prime is 56797963. The next prime is 56797999. The reversal of 56797990 is 9979765.

56797990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56797999) 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 7 ways as a sum of consecutive naturals, for example, 3085 + ... + 11095.

It is an arithmetic number, because the mean of its divisors is an integer number (6399585).

Almost surely, 2^56797990 is an apocalyptic number.

56797990 is a deficient number, since it is larger than the sum of its proper divisors (45595370).

56797990 is a wasteful number, since it uses less digits than its factorization.

56797990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8727.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The square root of 56797990 is about 7536.4441217327. Note that the first 3 decimals coincide. The cubic root of 56797990 is about 384.3949342119.

The spelling of 56797990 in words is "fifty-six million, seven hundred ninety-seven thousand, nine hundred ninety".