55353111513 has 24 divisors (see below), whose sum is σ = 86238851328. Its totient is φ = 31488490656.

The previous prime is 55353111487. The next prime is 55353111523. The reversal of 55353111513 is 31511135355.

It is not a de Polignac number, because 55353111513 - 2⁸ = 55353111257 is a prime.

It is a super-2 number, since 2×55353111513² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55353111523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 811506 + ... + 877067.

It is an arithmetic number, because the mean of its divisors is an integer number (3593285472).

Almost surely, 2^55353111513 is an apocalyptic number.

It is an amenable number.

55353111513 is a deficient number, since it is larger than the sum of its proper divisors (30885739815).

55353111513 is a wasteful number, since it uses less digits than its factorization.

55353111513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688813 (or 1688806 counting only the distinct ones).

The product of its digits is 16875, while the sum is 33.

Adding to 55353111513 its reverse (31511135355), we get a palindrome (86864246868).

The spelling of 55353111513 in words is "fifty-five billion, three hundred fifty-three million, one hundred eleven thousand, five hundred thirteen".