23087225 has 12 divisors (see below), whose sum is σ = 32718144. Its totient is φ = 15831120.

The previous prime is 23087221. The next prime is 23087227. The reversal of 23087225 is 52278032.

It is not a de Polignac number, because 23087225 - 2² = 23087221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23087221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65789 + ... + 66138.

It is an arithmetic number, because the mean of its divisors is an integer number (2726512).

Almost surely, 2^23087225 is an apocalyptic number.

23087225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23087225 is a deficient number, since it is larger than the sum of its proper divisors (9630919).

23087225 is a wasteful number, since it uses less digits than its factorization.

23087225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131944 (or 131939 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 23087225 is about 4804.9167526608. The cubic root of 23087225 is about 284.7457463631.

The spelling of 23087225 in words is "twenty-three million, eighty-seven thousand, two hundred twenty-five".