56079640 has 64 divisors (see below), whose sum is σ = 134200800. Its totient is φ = 21030912.

The previous prime is 56079629. The next prime is 56079641. The reversal of 56079640 is 4697065.

It is a self number, because there is not a number n which added to its sum of digits gives 56079640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56079641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85554 + ... + 86206.

Almost surely, 2^56079640 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 56079640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67100400).

56079640 is an abundant number, since it is smaller than the sum of its proper divisors (78121160).

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

56079640 is a wasteful number, since it uses less digits than its factorization.

56079640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 56079640 is about 7488.6340543520. The cubic root of 56079640 is about 382.7675147416.

It can be divided in two parts, 560 and 79640, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 56079640 in words is "fifty-six million, seventy-nine thousand, six hundred forty".