20625512 has 16 divisors (see below), whose sum is σ = 38823840. Its totient is φ = 10272496.

The previous prime is 20625499. The next prime is 20625529. The reversal of 20625512 is 21552602.

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, 2798 + ... + 7005.

It is an arithmetic number, because the mean of its divisors is an integer number (2426490).

Almost surely, 2^20625512 is an apocalyptic number.

It is an amenable number.

20625512 is a deficient number, since it is larger than the sum of its proper divisors (18198328).

20625512 is a wasteful number, since it uses less digits than its factorization.

20625512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10072 (or 10068 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 20625512 is about 4541.5319001412. The cubic root of 20625512 is about 274.2425968723.

The spelling of 20625512 in words is "twenty million, six hundred twenty-five thousand, five hundred twelve".