20756251050 has 48 divisors (see below), whose sum is σ = 51546001440. Its totient is φ = 5527419840.

The previous prime is 20756251037. The next prime is 20756251051. The reversal of 20756251050 is 5015265702.

It is a super-2 number, since 2×20756251050² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20756251051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15561 + ... + 204339.

It is an arithmetic number, because the mean of its divisors is an integer number (1073875030).

Almost surely, 2^20756251050 is an apocalyptic number.

20756251050 is an abundant number, since it is smaller than the sum of its proper divisors (30789750390).

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

20756251050 is a wasteful number, since it uses less digits than its factorization.

20756251050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189527 (or 189522 counting only the distinct ones).

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

The spelling of 20756251050 in words is "twenty billion, seven hundred fifty-six million, two hundred fifty-one thousand, fifty".