56120640 has 112 divisors (see below), whose sum is σ = 181709568. Its totient is φ = 14669824.

The previous prime is 56120639. The next prime is 56120651. The reversal of 56120640 is 4602165.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 56120640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50329 + ... + 51431.

Almost surely, 2^56120640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90854784).

56120640 is an abundant number, since it is smaller than the sum of its proper divisors (125588928).

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

56120640 is a wasteful number, since it uses less digits than its factorization.

56120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 56120640 is about 7491.3710360654. The cubic root of 56120640 is about 382.8607728602.

The spelling of 56120640 in words is "fifty-six million, one hundred twenty thousand, six hundred forty".