22665250 has 32 divisors (see below), whose sum is σ = 44933616. Its totient is φ = 8531200.

The previous prime is 22665241. The next prime is 22665277. The reversal of 22665250 is 5256622.

It can be written as a sum of positive squares in 8 ways, for example, as 9247681 + 13417569 = 3041^2 + 3663^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1584 + ... + 6916.

Almost surely, 2^22665250 is an apocalyptic number.

22665250 is a deficient number, since it is larger than the sum of its proper divisors (22268366).

22665250 is a wasteful number, since it uses less digits than its factorization.

22665250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367 (or 5357 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 22665250 is about 4760.8035036115. The cubic root of 22665250 is about 283.0002622081. Note that the first 3 decimals are identical.

The spelling of 22665250 in words is "twenty-two million, six hundred sixty-five thousand, two hundred fifty".