252303305513 has 4 divisors (see below), whose sum is σ = 288346634880. Its totient is φ = 216259976148.

The previous prime is 252303305447. The next prime is 252303305609. The reversal of 252303305513 is 315503303252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252303305513 - 2¹⁶ = 252303239977 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 252303305513.

It is not an unprimeable number, because it can be changed into a prime (252303335513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18021664673 + ... + 18021664686.

It is an arithmetic number, because the mean of its divisors is an integer number (72086658720).

Almost surely, 2^252303305513 is an apocalyptic number.

It is an amenable number.

252303305513 is a deficient number, since it is larger than the sum of its proper divisors (36043329367).

252303305513 is an equidigital number, since it uses as much as digits as its factorization.

252303305513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36043329366.

The product of its (nonzero) digits is 40500, while the sum is 32.

Adding to 252303305513 its reverse (315503303252), we get a palindrome (567806608765).

The spelling of 252303305513 in words is "two hundred fifty-two billion, three hundred three million, three hundred five thousand, five hundred thirteen".