27501225 has 12 divisors (see below), whose sum is σ = 45468816. Its totient is φ = 14667280.

The previous prime is 27501191. The next prime is 27501239. The reversal of 27501225 is 52210572.

It is not a de Polignac number, because 27501225 - 2¹⁴ = 27484841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27501195 and 27501204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183267 + ... + 183416.

It is an arithmetic number, because the mean of its divisors is an integer number (3789068).

Almost surely, 2^27501225 is an apocalyptic number.

27501225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27501225 is a deficient number, since it is larger than the sum of its proper divisors (17967591).

27501225 is a wasteful number, since it uses less digits than its factorization.

27501225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366696 (or 366691 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 27501225 is about 5244.1610387173. The cubic root of 27501225 is about 301.8450186480.

Adding to 27501225 its reverse (52210572), we get a palindrome (79711797).

The spelling of 27501225 in words is "twenty-seven million, five hundred one thousand, two hundred twenty-five".