23125540 has 24 divisors (see below), whose sum is σ = 48706560. Its totient is φ = 9223008.

The previous prime is 23125523. The next prime is 23125579. The reversal of 23125540 is 4552132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6151 + ... + 9169.

It is an arithmetic number, because the mean of its divisors is an integer number (2029440).

Almost surely, 2^23125540 is an apocalyptic number.

23125540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23125540 is an abundant number, since it is smaller than the sum of its proper divisors (25581020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23125540 is a wasteful number, since it uses less digits than its factorization.

23125540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411 (or 3409 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 23125540 is about 4808.9021616165. The cubic root of 23125540 is about 284.9031783555.

Adding to 23125540 its reverse (4552132), we get a palindrome (27677672).

The spelling of 23125540 in words is "twenty-three million, one hundred twenty-five thousand, five hundred forty".