23155025 has 12 divisors (see below), whose sum is σ = 28796892. Its totient is φ = 18469440.

The previous prime is 23155019. The next prime is 23155049. The reversal of 23155025 is 52055132.

It can be written as a sum of positive squares in 6 ways, for example, as 421201 + 22733824 = 649^2 + 4768^2 .

It is not a de Polignac number, because 23155025 - 2⁴ = 23155009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8759 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (2399741).

Almost surely, 2^23155025 is an apocalyptic number.

23155025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23155025 is a deficient number, since it is larger than the sum of its proper divisors (5641867).

23155025 is a wasteful number, since it uses less digits than its factorization.

23155025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 23155025 is about 4811.9668535849. The cubic root of 23155025 is about 285.0242105215.

The spelling of 23155025 in words is "twenty-three million, one hundred fifty-five thousand, twenty-five".