20502152502 has 64 divisors (see below), whose sum is σ = 46575648000. Its totient is φ = 5964375168.

The previous prime is 20502152501. The next prime is 20502152513. The reversal of 20502152502 is 20525120502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502152501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 740749 + ... + 767927.

It is an arithmetic number, because the mean of its divisors is an integer number (727744500).

Almost surely, 2^20502152502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20502152502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23287824000).

20502152502 is an abundant number, since it is smaller than the sum of its proper divisors (26073495498).

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

20502152502 is a wasteful number, since it uses less digits than its factorization.

20502152502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27725.

The product of its (nonzero) digits is 2000, while the sum is 24.

The spelling of 20502152502 in words is "twenty billion, five hundred two million, one hundred fifty-two thousand, five hundred two".