20525300736 has 88 divisors (see below), whose sum is σ = 54797764224. Its totient is φ = 6830469120.

The previous prime is 20525300723. The next prime is 20525300737. The reversal of 20525300736 is 63700352502.

It is a junction number, because it is equal to n+sod(n) for n = 20525300697 and 20525300706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525300737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1970101 + ... + 1980491.

Almost surely, 2^20525300736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20525300736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27398882112).

20525300736 is an abundant number, since it is smaller than the sum of its proper divisors (34272463488).

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

20525300736 is a wasteful number, since it uses less digits than its factorization.

20525300736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11057 (or 11039 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 33.

It can be divided in two parts, 205 and 25300736, that added together give a triangular number (25300941 = T₇₁₁₃).

The spelling of 20525300736 in words is "twenty billion, five hundred twenty-five million, three hundred thousand, seven hundred thirty-six".