20569452 has 24 divisors (see below), whose sum is σ = 50082816. Its totient is φ = 6558288.

The previous prime is 20569441. The next prime is 20569487. The reversal of 20569452 is 25496502.

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, 36988 + ... + 37539.

It is an arithmetic number, because the mean of its divisors is an integer number (2086784).

Almost surely, 2^20569452 is an apocalyptic number.

It is an amenable number.

20569452 is an abundant number, since it is smaller than the sum of its proper divisors (29513364).

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

20569452 is a wasteful number, since it uses less digits than its factorization.

20569452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74557 (or 74555 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 20569452 is about 4535.3557743577. The cubic root of 20569452 is about 273.9939082596.

The spelling of 20569452 in words is "twenty million, five hundred sixty-nine thousand, four hundred fifty-two".