20523032502 has 160 divisors (see below), whose sum is σ = 51808730112. Its totient is φ = 5398348032.

The previous prime is 20523032489. The next prime is 20523032557.

20523032502 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 11509503 + ... + 11511285.

Almost surely, 2^20523032502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20523032502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25904365056).

20523032502 is an abundant number, since it is smaller than the sum of its proper divisors (31285697610).

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

20523032502 is a wasteful number, since it uses less digits than its factorization.

20523032502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

It can be divided in two parts, 205230 and 32502, that added together give a palindrome (237732).

The spelling of 20523032502 in words is "twenty billion, five hundred twenty-three million, thirty-two thousand, five hundred two".