27135225 has 36 divisors (see below), whose sum is σ = 52346476. Its totient is φ = 13357440.

The previous prime is 27135217. The next prime is 27135253. The reversal of 27135225 is 52253172.

It can be written as a sum of positive squares in 6 ways, for example, as 725904 + 26409321 = 852^2 + 5139^2 .

It is not a de Polignac number, because 27135225 - 2³ = 27135217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1714 + ... + 7563.

Almost surely, 2^27135225 is an apocalyptic number.

27135225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27135225 is a deficient number, since it is larger than the sum of its proper divisors (25211251).

27135225 is a wasteful number, since it uses less digits than its factorization.

27135225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9306 (or 9298 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 27135225 is about 5209.1482029215. The cubic root of 27135225 is about 300.4999995386.

Adding to 27135225 its reverse (52253172), we get a palindrome (79388397).

The spelling of 27135225 in words is "twenty-seven million, one hundred thirty-five thousand, two hundred twenty-five".