21925092 has 24 divisors (see below), whose sum is σ = 58467136. Its totient is φ = 6264288.

The previous prime is 21925021. The next prime is 21925097. The reversal of 21925092 is 29052912.

It is not an unprimeable number, because it can be changed into a prime (21925097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130423 + ... + 130590.

Almost surely, 2^21925092 is an apocalyptic number.

It is an amenable number.

21925092 is an abundant number, since it is smaller than the sum of its proper divisors (36542044).

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

21925092 is a wasteful number, since it uses less digits than its factorization.

21925092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261027 (or 261025 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 21925092 is about 4682.4237313596. The cubic root of 21925092 is about 279.8855484618.

The spelling of 21925092 in words is "twenty-one million, nine hundred twenty-five thousand, ninety-two".