22531625 has 32 divisors (see below), whose sum is σ = 30326400. Its totient is φ = 16660800.

The previous prime is 22531609. The next prime is 22531627. The reversal of 22531625 is 52613522.

It is not a de Polignac number, because 22531625 - 2⁴ = 22531609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22531594 and 22531603.

It is not an unprimeable number, because it can be changed into a prime (22531627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125786 + ... + 125964.

It is an arithmetic number, because the mean of its divisors is an integer number (947700).

Almost surely, 2^22531625 is an apocalyptic number.

22531625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22531625 is a deficient number, since it is larger than the sum of its proper divisors (7794775).

22531625 is a wasteful number, since it uses less digits than its factorization.

22531625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 256 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 22531625 is about 4746.7488873965. The cubic root of 22531625 is about 282.4430145846.

The spelling of 22531625 in words is "twenty-two million, five hundred thirty-one thousand, six hundred twenty-five".