22551924 has 48 divisors (see below), whose sum is σ = 54613440. Its totient is φ = 7238400.

The previous prime is 22551899. The next prime is 22551929. The reversal of 22551924 is 42915522.

It is a super-2 number, since 2×22551924² = 1017178552203552, which contains 22 as substring.

22551924 is a Rhonda number in base 10.

Its product of digits (7200) is a multiple of the sum of its prime factors (720).

It is a junction number, because it is equal to n+sod(n) for n = 22551891 and 22551900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22551929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37224 + ... + 37824.

It is an arithmetic number, because the mean of its divisors is an integer number (1137780).

Almost surely, 2^22551924 is an apocalyptic number.

It is an amenable number.

22551924 is an abundant number, since it is smaller than the sum of its proper divisors (32061516).

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

22551924 is a wasteful number, since it uses less digits than its factorization.

22551924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 22551924 is about 4748.8866063531. The cubic root of 22551924 is about 282.5278078456.

The spelling of 22551924 in words is "twenty-two million, five hundred fifty-one thousand, nine hundred twenty-four".