50897616025 has 9 divisors (see below), whose sum is σ = 63114442653. Its totient is φ = 40717190400.

The previous prime is 50897616023. The next prime is 50897616031. The reversal of 50897616025 is 52061679805.

The square root of 50897616025 is 225605.

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

It can be written as a sum of positive squares in 4 ways, for example, as 22833325449 + 28064290576 = 151107^2 + 167524^2 .

It is not a de Polignac number, because 50897616025 - 2¹ = 50897616023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50897616025.

It is not an unprimeable number, because it can be changed into a prime (50897616023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1105465 + ... + 1150585.

Almost surely, 2^50897616025 is an apocalyptic number.

50897616025 is the 225605-th square number.

50897616025 is the 112803-rd centered octagonal number.

It is an amenable number.

50897616025 is a deficient number, since it is larger than the sum of its proper divisors (12216826628).

50897616025 is an frugal number, since it uses more digits than its factorization.

50897616025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90252 (or 45126 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 49.

Multiplying 50897616025 by its sum of digits (49), we get a square (2493983185225 = 1579235²).

The spelling of 50897616025 in words is "fifty billion, eight hundred ninety-seven million, six hundred sixteen thousand, twenty-five".