27855249 has 16 divisors (see below), whose sum is σ = 37684224. Its totient is φ = 18300800.

The previous prime is 27855241. The next prime is 27855253. The reversal of 27855249 is 94255872.

It is a cyclic number.

It is not a de Polignac number, because 27855249 - 2³ = 27855241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27855249.

It is not an unprimeable number, because it can be changed into a prime (27855241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98989 + ... + 99269.

It is an arithmetic number, because the mean of its divisors is an integer number (2355264).

Almost surely, 2^27855249 is an apocalyptic number.

It is an amenable number.

27855249 is a deficient number, since it is larger than the sum of its proper divisors (9828975).

27855249 is a wasteful number, since it uses less digits than its factorization.

27855249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its digits is 201600, while the sum is 42.

The square root of 27855249 is about 5277.8072151226. The cubic root of 27855249 is about 303.1347199066.

The spelling of 27855249 in words is "twenty-seven million, eight hundred fifty-five thousand, two hundred forty-nine".