22457025 has 18 divisors (see below), whose sum is σ = 40223430. Its totient is φ = 11976960.

The previous prime is 22457021. The next prime is 22457027. The reversal of 22457025 is 52075422.

It can be written as a sum of positive squares in 3 ways, for example, as 103041 + 22353984 = 321^2 + 4728^2 .

It is not a de Polignac number, because 22457025 - 2² = 22457021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22457025.

It is not an unprimeable number, because it can be changed into a prime (22457021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49680 + ... + 50129.

It is an arithmetic number, because the mean of its divisors is an integer number (2234635).

Almost surely, 2^22457025 is an apocalyptic number.

22457025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22457025 is a deficient number, since it is larger than the sum of its proper divisors (17766405).

22457025 is a wasteful number, since it uses less digits than its factorization.

22457025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99825 (or 99817 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 22457025 is about 4738.8843623790. The cubic root of 22457025 is about 282.1309562281.

The spelling of 22457025 in words is "twenty-two million, four hundred fifty-seven thousand, twenty-five".