22499956 has 6 divisors (see below), whose sum is σ = 39374930. Its totient is φ = 11249976.

The previous prime is 22499941. The next prime is 22499963. The reversal of 22499956 is 65999422.

It can be written as a sum of positive squares in only one way, i.e., 17808400 + 4691556 = 4220^2 + 2166^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2812491 + ... + 2812498.

Almost surely, 2^22499956 is an apocalyptic number.

It is an amenable number.

22499956 is a deficient number, since it is larger than the sum of its proper divisors (16874974).

22499956 is a wasteful number, since it uses less digits than its factorization.

22499956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624993 (or 5624991 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 22499956 is about 4743.4118522431. The cubic root of 22499956 is about 282.3106246394.

The spelling of 22499956 in words is "twenty-two million, four hundred ninety-nine thousand, nine hundred fifty-six".