27528725 has 12 divisors (see below), whose sum is σ = 39012384. Its totient is φ = 18876720.

The previous prime is 27528691. The next prime is 27528779. The reversal of 27528725 is 52782572.

It is not a de Polignac number, because 27528725 - 2⁸ = 27528469 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 78479 + ... + 78828.

It is an arithmetic number, because the mean of its divisors is an integer number (3251032).

Almost surely, 2^27528725 is an apocalyptic number.

27528725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27528725 is a deficient number, since it is larger than the sum of its proper divisors (11483659).

27528725 is a wasteful number, since it uses less digits than its factorization.

27528725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157324 (or 157319 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 27528725 is about 5246.7823473058. The cubic root of 27528725 is about 301.9455956557.

The spelling of 27528725 in words is "twenty-seven million, five hundred twenty-eight thousand, seven hundred twenty-five".