55351233143 has 16 divisors (see below), whose sum is σ = 59120720640. Its totient is φ = 51668265600.

The previous prime is 55351233137. The next prime is 55351233163. The reversal of 55351233143 is 34133215355.

It is a happy number.

It is not a de Polignac number, because 55351233143 - 2²⁸ = 55082797687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55351233163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2399183 + ... + 2422143.

It is an arithmetic number, because the mean of its divisors is an integer number (3695045040).

Almost surely, 2^55351233143 is an apocalyptic number.

55351233143 is a deficient number, since it is larger than the sum of its proper divisors (3769487497).

55351233143 is a wasteful number, since it uses less digits than its factorization.

55351233143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24838.

The product of its digits is 81000, while the sum is 35.

Adding to 55351233143 its reverse (34133215355), we get a palindrome (89484448498).

The spelling of 55351233143 in words is "fifty-five billion, three hundred fifty-one million, two hundred thirty-three thousand, one hundred forty-three".