27390825 has 192 divisors, whose sum is σ = 68567040. Its totient is φ = 10368000.

The previous prime is 27390793. The next prime is 27390827. The reversal of 27390825 is 52809372.

It is a happy number.

It is not a de Polignac number, because 27390825 - 2⁵ = 27390793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27390825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27390827) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 883560 + ... + 883590.

It is an arithmetic number, because the mean of its divisors is an integer number (357120).

Almost surely, 2^27390825 is an apocalyptic number.

27390825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27390825 is an abundant number, since it is smaller than the sum of its proper divisors (41176215).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27390825 is a wasteful number, since it uses less digits than its factorization.

27390825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 27390825 is about 5233.6244611168. The cubic root of 27390825 is about 301.4405714407.

The spelling of 27390825 in words is "twenty-seven million, three hundred ninety thousand, eight hundred twenty-five".