55317233202403 has 6 divisors (see below), whose sum is σ = 58762597208396. Its totient is φ = 52063278307872.

The previous prime is 55317233202397. The next prime is 55317233202419. The reversal of 55317233202403 is 30420233271355.

It is not a de Polignac number, because 55317233202403 - 2⁹ = 55317233201891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55317233212403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95704555425 + ... + 95704556002.

Almost surely, 2^{55317233202403} is an apocalyptic number.

55317233202403 is a deficient number, since it is larger than the sum of its proper divisors (3445364005993).

55317233202403 is a wasteful number, since it uses less digits than its factorization.

55317233202403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191409111461 (or 191409111444 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 40.

Adding to 55317233202403 its reverse (30420233271355), we get a palindrome (85737466473758).

The spelling of 55317233202403 in words is "fifty-five trillion, three hundred seventeen billion, two hundred thirty-three million, two hundred two thousand, four hundred three".