27280325 has 12 divisors (see below), whose sum is σ = 35818020. Its totient is φ = 20540160.

The previous prime is 27280321. The next prime is 27280343. The reversal of 27280325 is 52308272.

It can be written as a sum of positive squares in 6 ways, for example, as 261121 + 27019204 = 511^2 + 5198^2 .

It is not a de Polignac number, because 27280325 - 2² = 27280321 is a prime.

It is a super-2 number, since 2×27280325² = 1488432264211250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27280321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31670 + ... + 32519.

It is an arithmetic number, because the mean of its divisors is an integer number (2984835).

Almost surely, 2^27280325 is an apocalyptic number.

27280325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27280325 is a deficient number, since it is larger than the sum of its proper divisors (8537695).

27280325 is a wasteful number, since it uses less digits than its factorization.

27280325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64216 (or 64211 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 27280325 is about 5223.0570550206. The cubic root of 27280325 is about 301.0346681775.

Adding to 27280325 its reverse (52308272), we get a palindrome (79588597).

The spelling of 27280325 in words is "twenty-seven million, two hundred eighty thousand, three hundred twenty-five".