55837966 has 4 divisors (see below), whose sum is σ = 83756952. Its totient is φ = 27918982.

The previous prime is 55837931. The next prime is 55837981. The reversal of 55837966 is 66973855.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13959490 + ... + 13959493.

It is an arithmetic number, because the mean of its divisors is an integer number (20939238).

Almost surely, 2^55837966 is an apocalyptic number.

55837966 is a deficient number, since it is larger than the sum of its proper divisors (27918986).

55837966 is a wasteful number, since it uses less digits than its factorization.

55837966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27918985.

The product of its digits is 1360800, while the sum is 49.

The square root of 55837966 is about 7472.4805787637. The cubic root of 55837966 is about 382.2168802147.

The spelling of 55837966 in words is "fifty-five million, eight hundred thirty-seven thousand, nine hundred sixty-six".