23775225 has 12 divisors (see below), whose sum is σ = 39308496. Its totient is φ = 12680080.

The previous prime is 23775223. The next prime is 23775229. The reversal of 23775225 is 52257732.

It is not a de Polignac number, because 23775225 - 2¹ = 23775223 is a prime.

It is a super-2 number, since 2×23775225² = 1130522647601250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23775221) 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, 158427 + ... + 158576.

It is an arithmetic number, because the mean of its divisors is an integer number (3275708).

Almost surely, 2^23775225 is an apocalyptic number.

23775225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23775225 is a deficient number, since it is larger than the sum of its proper divisors (15533271).

23775225 is a wasteful number, since it uses less digits than its factorization.

23775225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317016 (or 317011 counting only the distinct ones).

The product of its digits is 29400, while the sum is 33.

The square root of 23775225 is about 4875.9845159721. The cubic root of 23775225 is about 287.5465835040.

The spelling of 23775225 in words is "twenty-three million, seven hundred seventy-five thousand, two hundred twenty-five".