23158825 has 6 divisors (see below), whose sum is σ = 28716974. Its totient is φ = 18527040.

The previous prime is 23158823. The next prime is 23158859. The reversal of 23158825 is 52885132.

It can be written as a sum of positive squares in 3 ways, for example, as 3481 + 23155344 = 59^2 + 4812^2 .

It is not a de Polignac number, because 23158825 - 2¹ = 23158823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23158823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 463152 + ... + 463201.

Almost surely, 2^23158825 is an apocalyptic number.

23158825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23158825 is a deficient number, since it is larger than the sum of its proper divisors (5558149).

23158825 is an equidigital number, since it uses as much as digits as its factorization.

23158825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926363 (or 926358 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 23158825 is about 4812.3616863241. The cubic root of 23158825 is about 285.0398015614.

The spelling of 23158825 in words is "twenty-three million, one hundred fifty-eight thousand, eight hundred twenty-five".