5215216393 has 4 divisors (see below), whose sum is σ = 5273814420. Its totient is φ = 5156618368.

The previous prime is 5215216379. The next prime is 5215216469. The reversal of 5215216393 is 3936125125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1647304569 + 3567911824 = 40587^2 + 59732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5215216393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5215216313) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 29298880 + ... + 29299057.

It is an arithmetic number, because the mean of its divisors is an integer number (1318453605).

Almost surely, 2^5215216393 is an apocalyptic number.

It is an amenable number.

5215216393 is a deficient number, since it is larger than the sum of its proper divisors (58598027).

5215216393 is an equidigital number, since it uses as much as digits as its factorization.

5215216393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58598026.

The product of its digits is 48600, while the sum is 37.

The square root of 5215216393 is about 72216.4551400856. The cubic root of 5215216393 is about 1734.1664412727.

The spelling of 5215216393 in words is "five billion, two hundred fifteen million, two hundred sixteen thousand, three hundred ninety-three".