56171370025 has 27 divisors (see below), whose sum is σ = 70468611031. Its totient is φ = 44416633040.

The previous prime is 56171370023. The next prime is 56171370037. The reversal of 56171370025 is 52007317165.

The square root of 56171370025 is 237005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20221693209 + 35949676816 = 142203^2 + 189604^2 .

It is not a de Polignac number, because 56171370025 - 2¹ = 56171370023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56171370023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 126797454 + ... + 126797896.

Almost surely, 2^56171370025 is an apocalyptic number.

56171370025 is the 237005-th square number.

56171370025 is the 118503-rd centered octagonal number.

It is an amenable number.

56171370025 is a deficient number, since it is larger than the sum of its proper divisors (14297241006).

56171370025 is an frugal number, since it uses more digits than its factorization.

56171370025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The spelling of 56171370025 in words is "fifty-six billion, one hundred seventy-one million, three hundred seventy thousand, twenty-five".