20533413500 has 48 divisors (see below), whose sum is σ = 44859726912. Its totient is φ = 8210664000.

The previous prime is 20533413499. The next prime is 20533413539. The reversal of 20533413500 is 531433502.

It is a self number, because there is not a number n which added to its sum of digits gives 20533413500.

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, 2306057 + ... + 2314943.

It is an arithmetic number, because the mean of its divisors is an integer number (934577644).

Almost surely, 2^20533413500 is an apocalyptic number.

20533413500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20533413500 is an abundant number, since it is smaller than the sum of its proper divisors (24326313412).

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

20533413500 is a wasteful number, since it uses less digits than its factorization.

20533413500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13527 (or 13515 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The spelling of 20533413500 in words is "twenty billion, five hundred thirty-three million, four hundred thirteen thousand, five hundred".