23125820 has 12 divisors (see below), whose sum is σ = 48564264. Its totient is φ = 9250320.

The previous prime is 23125819. The next prime is 23125829. The reversal of 23125820 is 2852132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23125829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578126 + ... + 578165.

It is an arithmetic number, because the mean of its divisors is an integer number (4047022).

Almost surely, 2^23125820 is an apocalyptic number.

23125820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23125820 is an abundant number, since it is smaller than the sum of its proper divisors (25438444).

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

23125820 is a wasteful number, since it uses less digits than its factorization.

23125820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156300 (or 1156298 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23125820 is about 4808.9312742022. The cubic root of 23125820 is about 284.9043282035.

Adding to 23125820 its reverse (2852132), we get a palindrome (25977952).

The spelling of 23125820 in words is "twenty-three million, one hundred twenty-five thousand, eight hundred twenty".