27997125 has 32 divisors (see below), whose sum is σ = 50179584. Its totient is φ = 13780800.

The previous prime is 27997121. The next prime is 27997133. The reversal of 27997125 is 52179972.

It is not a de Polignac number, because 27997125 - 2² = 27997121 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27997121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2004 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (1568112).

Almost surely, 2^27997125 is an apocalyptic number.

27997125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27997125 is a deficient number, since it is larger than the sum of its proper divisors (22182459).

27997125 is a wasteful number, since it uses less digits than its factorization.

27997125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774 (or 5764 counting only the distinct ones).

The product of its digits is 79380, while the sum is 42.

The square root of 27997125 is about 5291.2309531904. The cubic root of 27997125 is about 303.6485037446.

The spelling of 27997125 in words is "twenty-seven million, nine hundred ninety-seven thousand, one hundred twenty-five".