27525025025 has 6 divisors (see below), whose sum is σ = 34131031062. Its totient is φ = 22020020000.

The previous prime is 27525025019. The next prime is 27525025027. The reversal of 27525025025 is 52052052572.

It can be written as a sum of positive squares in 3 ways, for example, as 9437733904 + 18087291121 = 97148^2 + 134489^2 .

It is not a de Polignac number, because 27525025025 - 2²⁰ = 27523976449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27525025027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550500476 + ... + 550500525.

It is an arithmetic number, because the mean of its divisors is an integer number (5688505177).

Almost surely, 2^27525025025 is an apocalyptic number.

27525025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27525025025 is a deficient number, since it is larger than the sum of its proper divisors (6606006037).

27525025025 is a wasteful number, since it uses less digits than its factorization.

27525025025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101001011 (or 1101001006 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 35.

Adding to 27525025025 its reverse (52052052572), we get a palindrome (79577077597).

The spelling of 27525025025 in words is "twenty-seven billion, five hundred twenty-five million, twenty-five thousand, twenty-five".