23731925 has 18 divisors (see below), whose sum is σ = 34233858. Its totient is φ = 16272480.

The previous prime is 23731919. The next prime is 23731927. The reversal of 23731925 is 52913732.

It can be written as a sum of positive squares in 3 ways, for example, as 470596 + 23261329 = 686^2 + 4823^2 .

It is not a de Polignac number, because 23731925 - 2⁴ = 23731909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23731891 and 23731900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23731927) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8462 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (1901881).

Almost surely, 2^23731925 is an apocalyptic number.

23731925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23731925 is a deficient number, since it is larger than the sum of its proper divisors (10501933).

23731925 is a wasteful number, since it uses less digits than its factorization.

23731925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19397 (or 19385 counting only the distinct ones).

The product of its digits is 11340, while the sum is 32.

The square root of 23731925 is about 4871.5423635641. The cubic root of 23731925 is about 287.3719152199.

The spelling of 23731925 in words is "twenty-three million, seven hundred thirty-one thousand, nine hundred twenty-five".