55666874 has 8 divisors (see below), whose sum is σ = 88412148. Its totient is φ = 26196160.

The previous prime is 55666841. The next prime is 55666901. The reversal of 55666874 is 47866655.

55666874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55606849 + 60025 = 7457^2 + 245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818597 + ... + 818664.

Almost surely, 2^55666874 is an apocalyptic number.

55666874 is a deficient number, since it is larger than the sum of its proper divisors (32745274).

55666874 is a wasteful number, since it uses less digits than its factorization.

55666874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637280.

The product of its digits is 1209600, while the sum is 47.

The square root of 55666874 is about 7461.0236563088. The cubic root of 55666874 is about 381.8260997705.

The spelling of 55666874 in words is "fifty-five million, six hundred sixty-six thousand, eight hundred seventy-four".