55317376 has 16 divisors (see below), whose sum is σ = 110202840. Its totient is φ = 27658624.

The previous prime is 55317359. The next prime is 55317377. The reversal of 55317376 is 67371355.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55317377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215956 + ... + 216211.

Almost surely, 2^55317376 is an apocalyptic number.

It is an amenable number.

55317376 is a deficient number, since it is larger than the sum of its proper divisors (54885464).

55317376 is an equidigital number, since it uses as much as digits as its factorization.

55317376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432181 (or 432169 counting only the distinct ones).

The product of its digits is 66150, while the sum is 37.

The square root of 55317376 is about 7437.5651929916. The cubic root of 55317376 is about 381.0253379952.

The spelling of 55317376 in words is "fifty-five million, three hundred seventeen thousand, three hundred seventy-six".