55317043 has 4 divisors (see below), whose sum is σ = 56254680. Its totient is φ = 54379408.

The previous prime is 55316983. The next prime is 55317061. The reversal of 55317043 is 34071355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55317043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55317083) by changing a digit.

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, 468730 + ... + 468847.

It is an arithmetic number, because the mean of its divisors is an integer number (14063670).

Almost surely, 2^55317043 is an apocalyptic number.

55317043 is a deficient number, since it is larger than the sum of its proper divisors (937637).

55317043 is an equidigital number, since it uses as much as digits as its factorization.

55317043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937636.

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

The square root of 55317043 is about 7437.5428065995. The cubic root of 55317043 is about 381.0245734272.

Adding to 55317043 its reverse (34071355), we get a palindrome (89388398).

The spelling of 55317043 in words is "fifty-five million, three hundred seventeen thousand, forty-three".