20501056752 has 80 divisors (see below), whose sum is σ = 57810466560. Its totient is φ = 6208704000.

The previous prime is 20501056747. The next prime is 20501056757. The reversal of 20501056752 is 25765010502.

It is an interprime number because it is at equal distance from previous prime (20501056747) and next prime (20501056757).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20501056757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940149 + ... + 961707.

It is an arithmetic number, because the mean of its divisors is an integer number (722630832).

Almost surely, 2^20501056752 is an apocalyptic number.

20501056752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20501056752 is an abundant number, since it is smaller than the sum of its proper divisors (37309409808).

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

20501056752 is a wasteful number, since it uses less digits than its factorization.

20501056752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23382 (or 23376 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 20501056752 in words is "twenty billion, five hundred one million, fifty-six thousand, seven hundred fifty-two".