25923105231 has 32 divisors (see below), whose sum is σ = 37816252416. Its totient is φ = 15724800000.

The previous prime is 25923105217. The next prime is 25923105269. The reversal of 25923105231 is 13250132952.

It is not a de Polignac number, because 25923105231 - 2¹⁵ = 25923072463 is a prime.

It is a super-2 number, since 2×25923105231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25923105192 and 25923105201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25923105211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1653831 + ... + 1669431.

It is an arithmetic number, because the mean of its divisors is an integer number (1181757888).

Almost surely, 2^25923105231 is an apocalyptic number.

25923105231 is a deficient number, since it is larger than the sum of its proper divisors (11893147185).

25923105231 is a wasteful number, since it uses less digits than its factorization.

25923105231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16703.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 25923105231 in words is "twenty-five billion, nine hundred twenty-three million, one hundred five thousand, two hundred thirty-one".