56293840 has 20 divisors (see below), whose sum is σ = 130883364. Its totient is φ = 22517504.

The previous prime is 56293823. The next prime is 56293871. The reversal of 56293840 is 4839265.

It can be written as a sum of positive squares in 2 ways, for example, as 38787984 + 17505856 = 6228^2 + 4184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 56293840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351757 + ... + 351916.

Almost surely, 2^56293840 is an apocalyptic number.

It is an amenable number.

56293840 is an abundant number, since it is smaller than the sum of its proper divisors (74589524).

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

56293840 is a wasteful number, since it uses less digits than its factorization.

56293840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703686 (or 703680 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 56293840 is about 7502.9220974231. The cubic root of 56293840 is about 383.2542311051.

The spelling of 56293840 in words is "fifty-six million, two hundred ninety-three thousand, eight hundred forty".