55313031355 has 4 divisors (see below), whose sum is σ = 66375637632. Its totient is φ = 44250425080.

The previous prime is 55313031343. The next prime is 55313031377.

55313031355 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55313031355 - 2¹³ = 55313023163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55313031355.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5531303131 + ... + 5531303140.

It is an arithmetic number, because the mean of its divisors is an integer number (16593909408).

Almost surely, 2^55313031355 is an apocalyptic number.

55313031355 is a deficient number, since it is larger than the sum of its proper divisors (11062606277).

55313031355 is a wasteful number, since it uses less digits than its factorization.

55313031355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062606276.

The product of its (nonzero) digits is 50625, while the sum is 34.

It can be divided in two parts, 553130 and 31355, that added together give a palindrome (584485).

The spelling of 55313031355 in words is "fifty-five billion, three hundred thirteen million, thirty-one thousand, three hundred fifty-five".