20053452520 has 64 divisors (see below), whose sum is σ = 47211102720. Its totient is φ = 7651590144.

The previous prime is 20053452493. The next prime is 20053452553. The reversal of 20053452520 is 2525435002.

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, 307944 + ... + 367336.

It is an arithmetic number, because the mean of its divisors is an integer number (737673480).

Almost surely, 2^20053452520 is an apocalyptic number.

20053452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20053452520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23605551360).

20053452520 is an abundant number, since it is smaller than the sum of its proper divisors (27157650200).

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

20053452520 is a wasteful number, since it uses less digits than its factorization.

20053452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59794 (or 59790 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 20053452520 its reverse (2525435002), we get a palindrome (22578887522).

The spelling of 20053452520 in words is "twenty billion, fifty-three million, four hundred fifty-two thousand, five hundred twenty".