56755776 has 168 divisors, whose sum is σ = 189179200. Its totient is φ = 14699520.

The previous prime is 56755763. The next prime is 56755799. The reversal of 56755776 is 67755765.

It is a tau number, because it is divible by the number of its divisors (168).

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 23 ways as a sum of consecutive naturals, for example, 162450 + ... + 162798.

Almost surely, 2^56755776 is an apocalyptic number.

56755776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56755776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94589600).

56755776 is an abundant number, since it is smaller than the sum of its proper divisors (132423424).

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

56755776 is a wasteful number, since it uses less digits than its factorization.

56755776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 372 counting only the distinct ones).

The product of its digits is 1543500, while the sum is 48.

The square root of 56755776 is about 7533.6429434902. The cubic root of 56755776 is about 384.2996792595.

The spelling of 56755776 in words is "fifty-six million, seven hundred fifty-five thousand, seven hundred seventy-six".