56497140 has 72 divisors (see below), whose sum is σ = 195861120. Its totient is φ = 12913344.

The previous prime is 56497123. The next prime is 56497153. The reversal of 56497140 is 4179465.

56497140 is a `hidden beast` number, since 5 + 649 + 7 + 1 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 56497095 and 56497104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21160 + ... + 23679.

Almost surely, 2^56497140 is an apocalyptic number.

It is an amenable number.

56497140 is an abundant number, since it is smaller than the sum of its proper divisors (139363980).

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

56497140 is a wasteful number, since it uses less digits than its factorization.

56497140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44861 (or 44856 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 56497140 is about 7516.4579424088. The cubic root of 56497140 is about 383.7150392382.

The spelling of 56497140 in words is "fifty-six million, four hundred ninety-seven thousand, one hundred forty".