56040540 has 24 divisors (see below), whose sum is σ = 156913680. Its totient is φ = 14944128.

The previous prime is 56040527. The next prime is 56040559. The reversal of 56040540 is 4504065.

It is a self number, because there is not a number n which added to its sum of digits gives 56040540.

It is a congruent number.

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, 466945 + ... + 467064.

It is an arithmetic number, because the mean of its divisors is an integer number (6538070).

Almost surely, 2^56040540 is an apocalyptic number.

It is an amenable number.

56040540 is an abundant number, since it is smaller than the sum of its proper divisors (100873140).

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

56040540 is a wasteful number, since it uses less digits than its factorization.

56040540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934021 (or 934019 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 56040540 is about 7486.0229761870. The cubic root of 56040540 is about 382.6785359879.

The spelling of 56040540 in words is "fifty-six million, forty thousand, five hundred forty".