55317304 has 16 divisors (see below), whose sum is σ = 118537200. Its totient is φ = 23707392.

The previous prime is 55317289. The next prime is 55317313. The reversal of 55317304 is 40371355.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493849 + ... + 493960.

It is an arithmetic number, because the mean of its divisors is an integer number (7408575).

Almost surely, 2^55317304 is an apocalyptic number.

It is an amenable number.

55317304 is an abundant number, since it is smaller than the sum of its proper divisors (63219896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55317304 is a wasteful number, since it uses less digits than its factorization.

55317304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987822 (or 987818 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 55317304 is about 7437.5603526963. The cubic root of 55317304 is about 381.0251726834.

Adding to 55317304 its reverse (40371355), we get a palindrome (95688659).

The spelling of 55317304 in words is "fifty-five million, three hundred seventeen thousand, three hundred four".