56105540 has 24 divisors (see below), whose sum is σ = 120563520. Its totient is φ = 21919968.

The previous prime is 56105531. The next prime is 56105551. The reversal of 56105540 is 4550165.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31760 + ... + 33479.

It is an arithmetic number, because the mean of its divisors is an integer number (5023480).

Almost surely, 2^56105540 is an apocalyptic number.

It is an amenable number.

56105540 is an abundant number, since it is smaller than the sum of its proper divisors (64457980).

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

56105540 is a wasteful number, since it uses less digits than its factorization.

56105540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65291 (or 65289 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 56105540 is about 7490.3631420646. The cubic root of 56105540 is about 382.8264318628.

The spelling of 56105540 in words is "fifty-six million, one hundred five thousand, five hundred forty".