27055557 has 12 divisors (see below), whose sum is σ = 39989664. Its totient is φ = 17617320.

The previous prime is 27055549. The next prime is 27055583. The reversal of 27055557 is 75555072.

It is not a de Polignac number, because 27055557 - 2³ = 27055549 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27055507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34569 + ... + 35342.

It is an arithmetic number, because the mean of its divisors is an integer number (3332472).

Almost surely, 2^27055557 is an apocalyptic number.

It is an amenable number.

27055557 is a deficient number, since it is larger than the sum of its proper divisors (12934107).

27055557 is a wasteful number, since it uses less digits than its factorization.

27055557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69960 (or 69957 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The square root of 27055557 is about 5201.4956502914. The cubic root of 27055557 is about 300.2056256947.

The spelling of 27055557 in words is "twenty-seven million, fifty-five thousand, five hundred fifty-seven".