56779536 has 80 divisors (see below), whose sum is σ = 163114560. Its totient is φ = 16872960.

The previous prime is 56779529. The next prime is 56779561. The reversal of 56779536 is 63597765.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 26970 + ... + 28998.

It is an arithmetic number, because the mean of its divisors is an integer number (2038932).

Almost surely, 2^56779536 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 56779536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81557280).

56779536 is an abundant number, since it is smaller than the sum of its proper divisors (106335024).

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

56779536 is a wasteful number, since it uses less digits than its factorization.

56779536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104 (or 2098 counting only the distinct ones).

The product of its digits is 1190700, while the sum is 48.

The square root of 56779536 is about 7535.2197048261. The cubic root of 56779536 is about 384.3532989797.

The spelling of 56779536 in words is "fifty-six million, seven hundred seventy-nine thousand, five hundred thirty-six".