56177530791 has 16 divisors (see below), whose sum is σ = 77190386784. Its totient is φ = 36315091584.

The previous prime is 56177530789. The next prime is 56177530823. The reversal of 56177530791 is 19703577165.

56177530791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56177530791 - 2¹ = 56177530789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56177530711) 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, 831136 + ... + 896181.

It is an arithmetic number, because the mean of its divisors is an integer number (4824399174).

Almost surely, 2^56177530791 is an apocalyptic number.

56177530791 is a deficient number, since it is larger than the sum of its proper divisors (21012855993).

56177530791 is a wasteful number, since it uses less digits than its factorization.

56177530791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727650.

The product of its (nonzero) digits is 1389150, while the sum is 51.

The spelling of 56177530791 in words is "fifty-six billion, one hundred seventy-seven million, five hundred thirty thousand, seven hundred ninety-one".