27318863295025 has 9 divisors (see below), whose sum is σ = 33875422891681. Its totient is φ = 21855069729040.

The previous prime is 27318863295013. The next prime is 27318863295029. The reversal of 27318863295025 is 52059236881372.

The square root of 27318863295025 is 5226745.

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 5327865719089 + 21990997575936 = 2308217^2 + 4689456^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27318863295025 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27318863295029) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25611051 + ... + 26656399.

Almost surely, 2^{27318863295025} is an apocalyptic number.

27318863295025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27318863295025 is the 5226745-th square number.

27318863295025 is the 2613373-rd centered octagonal number.

It is an amenable number.

27318863295025 is a deficient number, since it is larger than the sum of its proper divisors (6556559596656).

27318863295025 is an frugal number, since it uses more digits than its factorization.

27318863295025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090708 (or 1045354 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 27318863295025 in words is "twenty-seven trillion, three hundred eighteen billion, eight hundred sixty-three million, two hundred ninety-five thousand, twenty-five".