22725648 has 60 divisors (see below), whose sum is σ = 69386928. Its totient is φ = 6886080.

The previous prime is 22725643. The next prime is 22725671. The reversal of 22725648 is 84652722.

22725648 is a `hidden beast` number, since 2 + 2 + 7 + 2 + 5 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22725643) 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, 5590 + ... + 8757.

Almost surely, 2^22725648 is an apocalyptic number.

It is an amenable number.

22725648 is an abundant number, since it is smaller than the sum of its proper divisors (46661280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22725648 is a wasteful number, since it uses less digits than its factorization.

22725648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14372 (or 14363 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 22725648 is about 4767.1425403485. The cubic root of 22725648 is about 283.2514174572.

The spelling of 22725648 in words is "twenty-two million, seven hundred twenty-five thousand, six hundred forty-eight".