27250720325 has 6 divisors (see below), whose sum is σ = 33790893234. Its totient is φ = 21800576240.

The previous prime is 27250720297. The next prime is 27250720351. The reversal of 27250720325 is 52302705272.

It can be written as a sum of positive squares in 3 ways, for example, as 9066467524 + 18184252801 = 95218^2 + 134849^2 .

It is not a de Polignac number, because 27250720325 - 2¹⁶ = 27250654789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 545014382 + ... + 545014431.

It is an arithmetic number, because the mean of its divisors is an integer number (5631815539).

Almost surely, 2^27250720325 is an apocalyptic number.

27250720325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27250720325 is a deficient number, since it is larger than the sum of its proper divisors (6540172909).

27250720325 is a wasteful number, since it uses less digits than its factorization.

27250720325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090028823 (or 1090028818 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 35.

The spelling of 27250720325 in words is "twenty-seven billion, two hundred fifty million, seven hundred twenty thousand, three hundred twenty-five".