27550164 has 24 divisors (see below), whose sum is σ = 64431360. Its totient is φ = 9162304.

The previous prime is 27550151. The next prime is 27550169. The reversal of 27550164 is 46105572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3352 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (2684640).

Almost surely, 2^27550164 is an apocalyptic number.

It is an amenable number.

27550164 is an abundant number, since it is smaller than the sum of its proper divisors (36881196).

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

27550164 is a wasteful number, since it uses less digits than its factorization.

27550164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279 (or 5277 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 27550164 is about 5248.8250113716. The cubic root of 27550164 is about 302.0239590366.

The spelling of 27550164 in words is "twenty-seven million, five hundred fifty thousand, one hundred sixty-four".