22925520 has 120 divisors (see below), whose sum is σ = 81563976. Its totient is φ = 5750784.

The previous prime is 22925473. The next prime is 22925543. The reversal of 22925520 is 2552922.

22925520 is a `hidden beast` number, since 22 + 92 + 552 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 571536 + 22353984 = 756^2 + 4728^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11304 + ... + 13176.

Almost surely, 2^22925520 is an apocalyptic number.

22925520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22925520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40781988).

22925520 is an abundant number, since it is smaller than the sum of its proper divisors (58638456).

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

22925520 is a wasteful number, since it uses less digits than its factorization.

22925520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22925520 is about 4788.0601499981. The cubic root of 22925520 is about 284.0793932631.

The spelling of 22925520 in words is "twenty-two million, nine hundred twenty-five thousand, five hundred twenty".