56140590 has 32 divisors (see below), whose sum is σ = 146987136. Its totient is φ = 13609760.

The previous prime is 56140583. The next prime is 56140627. The reversal of 56140590 is 9504165.

56140590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 84732 + ... + 85391.

It is an arithmetic number, because the mean of its divisors is an integer number (4593348).

Almost surely, 2^56140590 is an apocalyptic number.

56140590 is an abundant number, since it is smaller than the sum of its proper divisors (90846546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56140590 is a wasteful number, since it uses less digits than its factorization.

56140590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170144.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 56140590 is about 7492.7024497173. The cubic root of 56140590 is about 382.9061344688.

The spelling of 56140590 in words is "fifty-six million, one hundred forty thousand, five hundred ninety".