56744980 has 96 divisors (see below), whose sum is σ = 133249536. Its totient is φ = 20207616.

The previous prime is 56744953. The next prime is 56744983. The reversal of 56744980 is 8944765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56744983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 846907 + ... + 846973.

It is an arithmetic number, because the mean of its divisors is an integer number (1388016).

Almost surely, 2^56744980 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 56744980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66624768).

56744980 is an abundant number, since it is smaller than the sum of its proper divisors (76504556).

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

56744980 is a wasteful number, since it uses less digits than its factorization.

56744980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 56744980 is about 7532.9263901886. The cubic root of 56744980 is about 384.2753107416.

The spelling of 56744980 in words is "fifty-six million, seven hundred forty-four thousand, nine hundred eighty".