252105013 has 4 divisors (see below), whose sum is σ = 258918700. Its totient is φ = 245291328.

The previous prime is 252105011. The next prime is 252105031. The reversal of 252105013 is 310501252.

252105013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 232806564 + 19298449 = 15258^2 + 4393^2 .

It is a cyclic number.

It is not a de Polignac number, because 252105013 - 2¹ = 252105011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252105011) 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, 3406788 + ... + 3406861.

It is an arithmetic number, because the mean of its divisors is an integer number (64729675).

Almost surely, 2^252105013 is an apocalyptic number.

It is an amenable number.

252105013 is a deficient number, since it is larger than the sum of its proper divisors (6813687).

252105013 is an equidigital number, since it uses as much as digits as its factorization.

252105013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813686.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 252105013 is about 15877.8151204755. The cubic root of 252105013 is about 631.7236856592.

Adding to 252105013 its reverse (310501252), we get a palindrome (562606265).

The spelling of 252105013 in words is "two hundred fifty-two million, one hundred five thousand, thirteen".