20113555252 has 48 divisors (see below), whose sum is σ = 40530051072. Its totient is φ = 8555389920.

The previous prime is 20113555229. The next prime is 20113555271. The reversal of 20113555252 is 25255531102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2472063 + ... + 2480185.

It is an arithmetic number, because the mean of its divisors is an integer number (844376064).

Almost surely, 2^20113555252 is an apocalyptic number.

It is an amenable number.

20113555252 is an abundant number, since it is smaller than the sum of its proper divisors (20416495820).

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

20113555252 is a wasteful number, since it uses less digits than its factorization.

20113555252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788 (or 8786 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 20113555252 in words is "twenty billion, one hundred thirteen million, five hundred fifty-five thousand, two hundred fifty-two".