56105240 has 32 divisors (see below), whose sum is σ = 126630000. Its totient is φ = 22372224.

The previous prime is 56105237. The next prime is 56105249. The reversal of 56105240 is 4250165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56105249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11951 + ... + 15969.

Almost surely, 2^56105240 is an apocalyptic number.

It is an amenable number.

56105240 is an abundant number, since it is smaller than the sum of its proper divisors (70524760).

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

56105240 is a wasteful number, since it uses less digits than its factorization.

56105240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379 (or 4375 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 56105240 is about 7490.3431163065. The cubic root of 56105240 is about 382.8257495289.

The spelling of 56105240 in words is "fifty-six million, one hundred five thousand, two hundred forty".