22499954 has 4 divisors (see below), whose sum is σ = 33749934. Its totient is φ = 11249976.

The previous prime is 22499941. The next prime is 22499963. The reversal of 22499954 is 45999422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20025625 + 2474329 = 4475^2 + 1573^2 .

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, 5624987 + ... + 5624990.

Almost surely, 2^22499954 is an apocalyptic number.

22499954 is a deficient number, since it is larger than the sum of its proper divisors (11249980).

22499954 is a wasteful number, since it uses less digits than its factorization.

22499954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11249979.

The product of its digits is 233280, while the sum is 44.

The square root of 22499954 is about 4743.4116414243. The cubic root of 22499954 is about 282.3106162746.

The spelling of 22499954 in words is "twenty-two million, four hundred ninety-nine thousand, nine hundred fifty-four".