56771578524 has 48 divisors (see below), whose sum is σ = 136359514368. Its totient is φ = 18373060608.

The previous prime is 56771578469. The next prime is 56771578529. The reversal of 56771578524 is 42587517765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56771578529) 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, 243237 + ... + 415580.

It is an arithmetic number, because the mean of its divisors is an integer number (2840823216).

Almost surely, 2^56771578524 is an apocalyptic number.

It is an amenable number.

56771578524 is an abundant number, since it is smaller than the sum of its proper divisors (79587935844).

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

56771578524 is a wasteful number, since it uses less digits than its factorization.

56771578524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659034 (or 659032 counting only the distinct ones).

The product of its digits is 16464000, while the sum is 57.

The spelling of 56771578524 in words is "fifty-six billion, seven hundred seventy-one million, five hundred seventy-eight thousand, five hundred twenty-four".