55373866 has 8 divisors (see below), whose sum is σ = 87432480. Its totient is φ = 26229708.

The previous prime is 55373839. The next prime is 55373881. The reversal of 55373866 is 66837355.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728566 + ... + 728641.

It is an arithmetic number, because the mean of its divisors is an integer number (10929060).

Almost surely, 2^55373866 is an apocalyptic number.

55373866 is a deficient number, since it is larger than the sum of its proper divisors (32058614).

55373866 is a wasteful number, since it uses less digits than its factorization.

55373866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457228.

The product of its digits is 453600, while the sum is 43.

The square root of 55373866 is about 7441.3618377284. The cubic root of 55373866 is about 381.1549946556.

The spelling of 55373866 in words is "fifty-five million, three hundred seventy-three thousand, eight hundred sixty-six".