25231923 has 12 divisors (see below), whose sum is σ = 37622208. Its totient is φ = 16278480.

The previous prime is 25231879. The next prime is 25231937. The reversal of 25231923 is 32913252.

It is not a de Polignac number, because 25231923 - 2¹⁷ = 25100851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25231993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44940 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (3135184).

Almost surely, 2^25231923 is an apocalyptic number.

25231923 is a deficient number, since it is larger than the sum of its proper divisors (12390285).

25231923 is a wasteful number, since it uses less digits than its factorization.

25231923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90474 (or 90471 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 25231923 is about 5023.1387597796. The cubic root of 25231923 is about 293.3031880465.

The spelling of 25231923 in words is "twenty-five million, two hundred thirty-one thousand, nine hundred twenty-three".