2513323523 has 4 divisors (see below), whose sum is σ = 2533113600. Its totient is φ = 2493533448.

The previous prime is 2513323511. The next prime is 2513323559. The reversal of 2513323523 is 3253233152.

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 2513323523 - 2¹⁰ = 2513322499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2513323223) 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, 9894848 + ... + 9895101.

It is an arithmetic number, because the mean of its divisors is an integer number (633278400).

Almost surely, 2^2513323523 is an apocalyptic number.

2513323523 is a deficient number, since it is larger than the sum of its proper divisors (19790077).

2513323523 is a wasteful number, since it uses less digits than its factorization.

2513323523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19790076.

The product of its digits is 16200, while the sum is 29.

The square root of 2513323523 is about 50133.0581851935. The cubic root of 2513323523 is about 1359.6155781635.

Adding to 2513323523 its reverse (3253233152), we get a palindrome (5766556675).

The spelling of 2513323523 in words is "two billion, five hundred thirteen million, three hundred twenty-three thousand, five hundred twenty-three".