5513391685 has 8 divisors (see below), whose sum is σ = 6626796696. Its totient is φ = 4403562240.

The previous prime is 5513391679. The next prime is 5513391761. The reversal of 5513391685 is 5861933155.

It can be written as a sum of positive squares in 4 ways, for example, as 384826689 + 5128564996 = 19617^2 + 71614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5513391685 - 2³ = 5513391677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890496 + ... + 896665.

It is an arithmetic number, because the mean of its divisors is an integer number (828349587).

Almost surely, 2^5513391685 is an apocalyptic number.

It is an amenable number.

5513391685 is a deficient number, since it is larger than the sum of its proper divisors (1113405011).

5513391685 is a wasteful number, since it uses less digits than its factorization.

5513391685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787783.

The product of its digits is 486000, while the sum is 46.

The square root of 5513391685 is about 74252.2167009174. The cubic root of 5513391685 is about 1766.6056523171.

The spelling of 5513391685 in words is "five billion, five hundred thirteen million, three hundred ninety-one thousand, six hundred eighty-five".