20207725700 has 18 divisors (see below), whose sum is σ = 43850764986. Its totient is φ = 8083090240.

The previous prime is 20207725669. The next prime is 20207725721. The reversal of 20207725700 is 752770202.

It can be written as a sum of positive squares in 3 ways, for example, as 2015650816 + 18192074884 = 44896^2 + 134878^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101038529 + ... + 101038728.

Almost surely, 2^20207725700 is an apocalyptic number.

20207725700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20207725700 is an abundant number, since it is smaller than the sum of its proper divisors (23643039286).

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

20207725700 is a wasteful number, since it uses less digits than its factorization.

20207725700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202077271 (or 202077264 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 32.

The spelling of 20207725700 in words is "twenty billion, two hundred seven million, seven hundred twenty-five thousand, seven hundred".