22897825 has 12 divisors (see below), whose sum is σ = 28462588. Its totient is φ = 18273600.

The previous prime is 22897807. The next prime is 22897829. The reversal of 22897825 is 52879822.

It can be written as a sum of positive squares in 6 ways, for example, as 1442401 + 21455424 = 1201^2 + 4632^2 .

It is not a de Polignac number, because 22897825 - 2⁷ = 22897697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22897829) 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, 12679 + ... + 14371.

Almost surely, 2^22897825 is an apocalyptic number.

22897825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22897825 is a deficient number, since it is larger than the sum of its proper divisors (5564763).

22897825 is a wasteful number, since it uses less digits than its factorization.

22897825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244 (or 2239 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 22897825 is about 4785.1671862120. The cubic root of 22897825 is about 283.9649538517.

The spelling of 22897825 in words is "twenty-two million, eight hundred ninety-seven thousand, eight hundred twenty-five".