56138820325 has 96 divisors (see below), whose sum is σ = 85485528576. Its totient is φ = 35741122560.

The previous prime is 56138820289. The next prime is 56138820329. The reversal of 56138820325 is 52302883165.

It is not a de Polignac number, because 56138820325 - 2²¹ = 56136723173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56138820329) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20691169 + ... + 20693881.

It is an arithmetic number, because the mean of its divisors is an integer number (890474256).

Almost surely, 2^56138820325 is an apocalyptic number.

It is an amenable number.

56138820325 is a deficient number, since it is larger than the sum of its proper divisors (29346708251).

56138820325 is a wasteful number, since it uses less digits than its factorization.

56138820325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 56138820325 in words is "fifty-six billion, one hundred thirty-eight million, eight hundred twenty thousand, three hundred twenty-five".