52031891025 has 135 divisors (see below), whose sum is σ = 99784660899. Its totient is φ = 26803249920.

The previous prime is 52031891003. The next prime is 52031891027. The reversal of 52031891025 is 52019813025.

The square root of 52031891025 is 228105.

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

52031891025 is a `hidden beast` number, since 520 + 31 + 89 + 1 + 0 + 25 = 666.

52031891025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 7314867729 + 44717023296 = 85527^2 + 211464^2 .

It is a tau number, because it is divible by the number of its divisors (135).

It is not a de Polignac number, because 52031891025 - 2⁵ = 52031890993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52031891027) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 379794757 + ... + 379794893.

Almost surely, 2^52031891025 is an apocalyptic number.

52031891025 is the 228105-th square number.

52031891025 is the 114053-rd centered octagonal number.

It is an amenable number.

52031891025 is a deficient number, since it is larger than the sum of its proper divisors (47752769874).

52031891025 is an equidigital number, since it uses as much as digits as its factorization.

52031891025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

Multiplying 52031891025 by its sum of digits (36), we get a square (1873148076900 = 1368630²).

The spelling of 52031891025 in words is "fifty-two billion, thirty-one million, eight hundred ninety-one thousand, twenty-five".