20564052 has 12 divisors (see below), whose sum is σ = 47982816. Its totient is φ = 6854680.

The previous prime is 20564041. The next prime is 20564059. The reversal of 20564052 is 25046502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20564059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856824 + ... + 856847.

It is an arithmetic number, because the mean of its divisors is an integer number (3998568).

Almost surely, 2^20564052 is an apocalyptic number.

It is an amenable number.

20564052 is an abundant number, since it is smaller than the sum of its proper divisors (27418764).

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

20564052 is a wasteful number, since it uses less digits than its factorization.

20564052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713678 (or 1713676 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20564052 is about 4534.7604126348. The cubic root of 20564052 is about 273.9699293904.

The spelling of 20564052 in words is "twenty million, five hundred sixty-four thousand, fifty-two".