20936552 has 32 divisors (see below), whose sum is σ = 48316800. Its totient is φ = 8282304.

The previous prime is 20936549. The next prime is 20936567. The reversal of 20936552 is 25563902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13652 + ... + 15107.

It is an arithmetic number, because the mean of its divisors is an integer number (1509900).

Almost surely, 2^20936552 is an apocalyptic number.

It is an amenable number.

20936552 is an abundant number, since it is smaller than the sum of its proper divisors (27380248).

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

20936552 is a wasteful number, since it uses less digits than its factorization.

20936552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28785 (or 28781 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 20936552 is about 4575.6477137122. The cubic root of 20936552 is about 275.6142830180.

The spelling of 20936552 in words is "twenty million, nine hundred thirty-six thousand, five hundred fifty-two".