20026495225 has 81 divisors (see below), whose sum is σ = 28548431247. Its totient is φ = 13925076000.

The previous prime is 20026495207. The next prime is 20026495241. The reversal of 20026495225 is 52259462002.

The square root of 20026495225 is 141515.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7209538281 + 12816956944 = 84909^2 + 113212^2 .

It is not a de Polignac number, because 20026495225 - 2⁹ = 20026494713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 241283034 + ... + 241283116.

Almost surely, 2^20026495225 is an apocalyptic number.

20026495225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20026495225 is the 141515-th square number.

20026495225 is the 70758-th centered octagonal number.

It is an amenable number.

20026495225 is a deficient number, since it is larger than the sum of its proper divisors (8521936022).

20026495225 is an equidigital number, since it uses as much as digits as its factorization.

20026495225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20026495225 in words is "twenty billion, twenty-six million, four hundred ninety-five thousand, two hundred twenty-five".