20532002504 has 16 divisors (see below), whose sum is σ = 41458851420. Its totient is φ = 9476308800.

The previous prime is 20532002479. The next prime is 20532002539. The reversal of 20532002504 is 40520023502.

It can be written as a sum of positive squares in 2 ways, for example, as 19207188100 + 1324814404 = 138590^2 + 36398^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20532002504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98711447 + ... + 98711654.

Almost surely, 2^20532002504 is an apocalyptic number.

It is an amenable number.

20532002504 is an abundant number, since it is smaller than the sum of its proper divisors (20926848916).

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

20532002504 is a wasteful number, since it uses less digits than its factorization.

20532002504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197423120 (or 197423116 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The spelling of 20532002504 in words is "twenty billion, five hundred thirty-two million, two thousand, five hundred four".