20924589252 has 24 divisors (see below), whose sum is σ = 55798904896. Its totient is φ = 5978454048.

The previous prime is 20924589229. The next prime is 20924589253. The reversal of 20924589252 is 25298542902.

It is not an unprimeable number, because it can be changed into a prime (20924589253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124551043 + ... + 124551210.

Almost surely, 2^20924589252 is an apocalyptic number.

It is an amenable number.

20924589252 is an abundant number, since it is smaller than the sum of its proper divisors (34874315644).

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

20924589252 is a wasteful number, since it uses less digits than its factorization.

20924589252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249102267 (or 249102265 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 20924589252 in words is "twenty billion, nine hundred twenty-four million, five hundred eighty-nine thousand, two hundred fifty-two".