20512896 has 32 divisors (see below), whose sum is σ = 54488400. Its totient is φ = 6837504.

The previous prime is 20512883. The next prime is 20512907. The reversal of 20512896 is 69821502.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26326 + ... + 27093.

Almost surely, 2^20512896 is an apocalyptic number.

It is an amenable number.

20512896 is an abundant number, since it is smaller than the sum of its proper divisors (33975504).

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

20512896 is an equidigital number, since it uses as much as digits as its factorization.

20512896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53436 (or 53424 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 20512896 is about 4529.1164701297. The cubic root of 20512896 is about 273.7425610455.

The spelling of 20512896 in words is "twenty million, five hundred twelve thousand, eight hundred ninety-six".