27117225 has 36 divisors (see below), whose sum is σ = 48901632. Its totient is φ = 14364000.

The previous prime is 27117221. The next prime is 27117229. The reversal of 27117225 is 52271172.

It is an interprime number because it is at equal distance from previous prime (27117221) and next prime (27117229).

It is not a de Polignac number, because 27117225 - 2² = 27117221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27117221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42660 + ... + 43290.

Almost surely, 2^27117225 is an apocalyptic number.

27117225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27117225 is a deficient number, since it is larger than the sum of its proper divisors (21784407).

27117225 is a wasteful number, since it uses less digits than its factorization.

27117225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 830 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 27117225 is about 5207.4201866183. The cubic root of 27117225 is about 300.4335398422.

Adding to 27117225 its reverse (52271172), we get a palindrome (79388397).

The spelling of 27117225 in words is "twenty-seven million, one hundred seventeen thousand, two hundred twenty-five".