27642725 has 12 divisors (see below), whose sum is σ = 37393440. Its totient is φ = 20103600.

The previous prime is 27642707. The next prime is 27642743. The reversal of 27642725 is 52724672.

It is an interprime number because it is at equal distance from previous prime (27642707) and next prime (27642743).

It is not a de Polignac number, because 27642725 - 2¹⁴ = 27626341 is a prime.

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, 49985 + ... + 50534.

It is an arithmetic number, because the mean of its divisors is an integer number (3116120).

Almost surely, 2^27642725 is an apocalyptic number.

27642725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27642725 is a deficient number, since it is larger than the sum of its proper divisors (9750715).

27642725 is a wasteful number, since it uses less digits than its factorization.

27642725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100540 (or 100535 counting only the distinct ones).

The product of its digits is 47040, while the sum is 35.

The square root of 27642725 is about 5257.6349245645. The cubic root of 27642725 is about 302.3618201858.

The spelling of 27642725 in words is "twenty-seven million, six hundred forty-two thousand, seven hundred twenty-five".