20512924 has 6 divisors (see below), whose sum is σ = 35897624. Its totient is φ = 10256460.

The previous prime is 20512909. The next prime is 20512939. The reversal of 20512924 is 42921502.

It is an interprime number because it is at equal distance from previous prime (20512909) and next prime (20512939).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564112 + ... + 2564119.

Almost surely, 2^20512924 is an apocalyptic number.

It is an amenable number.

20512924 is a deficient number, since it is larger than the sum of its proper divisors (15384700).

20512924 is a wasteful number, since it uses less digits than its factorization.

20512924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128235 (or 5128233 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 20512924 is about 4529.1195612392. The cubic root of 20512924 is about 273.7426855979.

The spelling of 20512924 in words is "twenty million, five hundred twelve thousand, nine hundred twenty-four".