20625924 has 24 divisors (see below), whose sum is σ = 52502688. Its totient is φ = 6250240.

The previous prime is 20625919. The next prime is 20625937. The reversal of 20625924 is 42952602.

It is a junction number, because it is equal to n+sod(n) for n = 20625891 and 20625900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77997 + ... + 78260.

It is an arithmetic number, because the mean of its divisors is an integer number (2187612).

Almost surely, 2^20625924 is an apocalyptic number.

It is an amenable number.

20625924 is an abundant number, since it is smaller than the sum of its proper divisors (31876764).

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

20625924 is a wasteful number, since it uses less digits than its factorization.

20625924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156275 (or 156273 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20625924 is about 4541.5772590588. The cubic root of 20625924 is about 274.2444228827.

The spelling of 20625924 in words is "twenty million, six hundred twenty-five thousand, nine hundred twenty-four".