23525831 has 12 divisors (see below), whose sum is σ = 27502272. Its totient is φ = 20065248.

The previous prime is 23525767. The next prime is 23525833. The reversal of 23525831 is 13852532.

It is not a de Polignac number, because 23525831 - 2⁶ = 23525767 is a prime.

It is a super-2 number, since 2×23525831² = 1106929448481122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23525794 and 23525803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23525833) 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, 9851 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (2291856).

Almost surely, 2^23525831 is an apocalyptic number.

23525831 is a deficient number, since it is larger than the sum of its proper divisors (3976441).

23525831 is a wasteful number, since it uses less digits than its factorization.

23525831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2383 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 23525831 is about 4850.3433899055. The cubic root of 23525831 is about 286.5376255044.

The spelling of 23525831 in words is "twenty-three million, five hundred twenty-five thousand, eight hundred thirty-one".