23100025 has 48 divisors (see below), whose sum is σ = 33841584. Its totient is φ = 15482880.

The previous prime is 23100017. The next prime is 23100031. The reversal of 23100025 is 52000132.

It can be written as a sum of positive squares in 24 ways, for example, as 17842176 + 5257849 = 4224^2 + 2293^2 .

It is not a de Polignac number, because 23100025 - 2³ = 23100017 is a prime.

It is a super-2 number, since 2×23100025² = 1067222310001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23099978 and 23100014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204369 + ... + 204481.

It is an arithmetic number, because the mean of its divisors is an integer number (705033).

Almost surely, 2^23100025 is an apocalyptic number.

23100025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23100025 is a deficient number, since it is larger than the sum of its proper divisors (10741559).

23100025 is a wasteful number, since it uses less digits than its factorization.

23100025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 23100025 is about 4806.2485370609. The cubic root of 23100025 is about 284.7983594740.

Adding to 23100025 its reverse (52000132), we get a palindrome (75100157).

The spelling of 23100025 in words is "twenty-three million, one hundred thousand, twenty-five".