5135215523 has 4 divisors (see below), whose sum is σ = 5142127728. Its totient is φ = 5128303320.

The previous prime is 5135215507. The next prime is 5135215541. The reversal of 5135215523 is 3255125315.

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

It is a cyclic number.

It is not a de Polignac number, because 5135215523 - 2⁴ = 5135215507 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 5135215523.

It is not an unprimeable number, because it can be changed into a prime (5135215573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3454988 + ... + 3456473.

It is an arithmetic number, because the mean of its divisors is an integer number (1285531932).

Almost surely, 2^5135215523 is an apocalyptic number.

5135215523 is a deficient number, since it is larger than the sum of its proper divisors (6912205).

5135215523 is an equidigital number, since it uses as much as digits as its factorization.

5135215523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912204.

The product of its digits is 22500, while the sum is 32.

The square root of 5135215523 is about 71660.4181051157. The cubic root of 5135215523 is about 1725.2533995032.

The spelling of 5135215523 in words is "five billion, one hundred thirty-five million, two hundred fifteen thousand, five hundred twenty-three".