27125257 has 8 divisors (see below), whose sum is σ = 28358784. Its totient is φ = 25896288.

The previous prime is 27125243. The next prime is 27125261. The reversal of 27125257 is 75252172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27125257 - 2⁷ = 27125129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27125227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18213 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (3544848).

Almost surely, 2^27125257 is an apocalyptic number.

It is an amenable number.

27125257 is a deficient number, since it is larger than the sum of its proper divisors (1233527).

27125257 is a wasteful number, since it uses less digits than its factorization.

27125257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279.

The product of its digits is 9800, while the sum is 31.

The square root of 27125257 is about 5208.1913367310. The cubic root of 27125257 is about 300.4631992682.

The spelling of 27125257 in words is "twenty-seven million, one hundred twenty-five thousand, two hundred fifty-seven".