56513140 has 12 divisors (see below), whose sum is σ = 118677636. Its totient is φ = 22605248.

The previous prime is 56513101. The next prime is 56513153. The reversal of 56513140 is 4131565.

It can be written as a sum of positive squares in 2 ways, for example, as 35664784 + 20848356 = 5972^2 + 4566^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412809 + ... + 1412848.

It is an arithmetic number, because the mean of its divisors is an integer number (9889803).

Almost surely, 2^56513140 is an apocalyptic number.

It is an amenable number.

56513140 is an abundant number, since it is smaller than the sum of its proper divisors (62164496).

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

56513140 is a wasteful number, since it uses less digits than its factorization.

56513140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2825666 (or 2825664 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56513140 is about 7517.5221981714. The cubic root of 56513140 is about 383.7512585415.

The spelling of 56513140 in words is "fifty-six million, five hundred thirteen thousand, one hundred forty".