252930013 has 6 divisors (see below), whose sum is σ = 294224766. Its totient is φ = 216797112.

The previous prime is 252930001. The next prime is 252930049. The reversal of 252930013 is 310039252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 164814244 + 88115769 = 12838^2 + 9387^2 .

It is not a de Polignac number, because 252930013 - 2⁵ = 252929981 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 252930013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252910013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2580870 + ... + 2580967.

It is an arithmetic number, because the mean of its divisors is an integer number (49037461).

Almost surely, 2^252930013 is an apocalyptic number.

It is an amenable number.

252930013 is a deficient number, since it is larger than the sum of its proper divisors (41294753).

252930013 is an equidigital number, since it uses as much as digits as its factorization.

252930013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161851 (or 5161844 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 252930013 is about 15903.7735459230. The cubic root of 252930013 is about 632.4120291969.

Adding to 252930013 its reverse (310039252), we get a palindrome (562969265).

The spelling of 252930013 in words is "two hundred fifty-two million, nine hundred thirty thousand, thirteen".