55027187 has 6 divisors (see below), whose sum is σ = 55660428. Its totient is φ = 54401072.

The previous prime is 55027169. The next prime is 55027223. The reversal of 55027187 is 78172055.

It is a de Polignac number, because none of the positive numbers 2^k-55027187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55027127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4448 + ... + 11394.

It is an arithmetic number, because the mean of its divisors is an integer number (9276738).

Almost surely, 2^55027187 is an apocalyptic number.

55027187 is a deficient number, since it is larger than the sum of its proper divisors (633241).

55027187 is an frugal number, since it uses more digits than its factorization.

55027187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125 (or 7036 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 55027187 is about 7418.0312078071. The cubic root of 55027187 is about 380.3578968868.

The spelling of 55027187 in words is "fifty-five million, twenty-seven thousand, one hundred eighty-seven".