56297825578 has 4 divisors (see below), whose sum is σ = 84446738370. Its totient is φ = 28148912788.

The previous prime is 56297825567. The next prime is 56297825587. The reversal of 56297825578 is 87552879265.

56297825578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29954263329 + 26343562249 = 173073^2 + 162307^2 .

It is a super-2 number, since 2×56297825578² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14074456393 + ... + 14074456396.

Almost surely, 2^56297825578 is an apocalyptic number.

56297825578 is a deficient number, since it is larger than the sum of its proper divisors (28148912792).

56297825578 is a wasteful number, since it uses less digits than its factorization.

56297825578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28148912791.

The product of its digits is 84672000, while the sum is 64.

The spelling of 56297825578 in words is "fifty-six billion, two hundred ninety-seven million, eight hundred twenty-five thousand, five hundred seventy-eight".