20238706575025 has 9 divisors (see below), whose sum is σ = 25096024045281. Its totient is φ = 16190947265040.

The previous prime is 20238706574993. The next prime is 20238706575049. The reversal of 20238706575025 is 52057560783202.

The square root of 20238706575025 is 4498745.

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

It can be written as a sum of positive squares in 4 ways, for example, as 4157451674289 + 16081254900736 = 2038983^2 + 4010144^2 .

It is not a de Polignac number, because 20238706575025 - 2⁵ = 20238706574993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22043851 + ... + 22943599.

Almost surely, 2^{20238706575025} is an apocalyptic number.

20238706575025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20238706575025 is the 4498745-th square number.

20238706575025 is the 2249373-rd centered octagonal number.

It is an amenable number.

20238706575025 is a deficient number, since it is larger than the sum of its proper divisors (4857317470256).

20238706575025 is an frugal number, since it uses more digits than its factorization.

20238706575025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799508 (or 899754 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 52.

The spelling of 20238706575025 in words is "twenty trillion, two hundred thirty-eight billion, seven hundred six million, five hundred seventy-five thousand, twenty-five".