56456740 has 24 divisors (see below), whose sum is σ = 120186360. Its totient is φ = 22272768.

The previous prime is 56456723. The next prime is 56456761. The reversal of 56456740 is 4765465.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1340964 + 55115776 = 1158^2 + 7424^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56456740.

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, 17875 + ... + 20794.

It is an arithmetic number, because the mean of its divisors is an integer number (5007765).

Almost surely, 2^56456740 is an apocalyptic number.

It is an amenable number.

56456740 is an abundant number, since it is smaller than the sum of its proper divisors (63729620).

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

56456740 is a wasteful number, since it uses less digits than its factorization.

56456740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38751 (or 38749 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 56456740 is about 7513.7700257594. The cubic root of 56456740 is about 383.6235550549.

The spelling of 56456740 in words is "fifty-six million, four hundred fifty-six thousand, seven hundred forty".