27945554 has 32 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 10991232.

The previous prime is 27945551. The next prime is 27945563. The reversal of 27945554 is 45554972.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (27945551) 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, 42077 + ... + 42735.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^27945554 is an apocalyptic number.

27945554 is a deficient number, since it is larger than the sum of its proper divisors (23946286).

27945554 is a wasteful number, since it uses less digits than its factorization.

27945554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its digits is 252000, while the sum is 41.

The square root of 27945554 is about 5286.3554553208. The cubic root of 27945554 is about 303.4619479012.

The spelling of 27945554 in words is "twenty-seven million, nine hundred forty-five thousand, five hundred fifty-four".