20583925 has 6 divisors (see below), whose sum is σ = 25524098. Its totient is φ = 16467120.

The previous prime is 20583841. The next prime is 20583931. The reversal of 20583925 is 52938502.

It can be written as a sum of positive squares in 3 ways, for example, as 306916 + 20277009 = 554^2 + 4503^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20583925 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 411654 + ... + 411703.

Almost surely, 2^20583925 is an apocalyptic number.

20583925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20583925 is a deficient number, since it is larger than the sum of its proper divisors (4940173).

20583925 is an equidigital number, since it uses as much as digits as its factorization.

20583925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823367 (or 823362 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 20583925 is about 4536.9510687245. The cubic root of 20583925 is about 274.0581553793.

The spelling of 20583925 in words is "twenty million, five hundred eighty-three thousand, nine hundred twenty-five".