56776356 has 192 divisors, whose sum is σ = 186278400. Its totient is φ = 14556672.

The previous prime is 56776339. The next prime is 56776361. The reversal of 56776356 is 65367765.

56776356 is a `hidden beast` number, since 5 + 6 + 7 + 7 + 635 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 520830 + ... + 520938.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 2^56776356 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 56776356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93139200).

56776356 is an abundant number, since it is smaller than the sum of its proper divisors (129502044).

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

56776356 is a wasteful number, since it uses less digits than its factorization.

56776356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 187 counting only the distinct ones).

The product of its digits is 793800, while the sum is 45.

The square root of 56776356 is about 7535.0086927621. The cubic root of 56776356 is about 384.3461234702.

The spelling of 56776356 in words is "fifty-six million, seven hundred seventy-six thousand, three hundred fifty-six".