252440113 has 4 divisors (see below), whose sum is σ = 257203188. Its totient is φ = 247677040.

The previous prime is 252440081. The next prime is 252440141. The reversal of 252440113 is 311044252.

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 100460529 + 151979584 = 10023^2 + 12328^2 .

It is a cyclic number.

It is not a de Polignac number, because 252440113 - 2⁵ = 252440081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252240113) 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, 2381458 + ... + 2381563.

It is an arithmetic number, because the mean of its divisors is an integer number (64300797).

Almost surely, 2^252440113 is an apocalyptic number.

It is an amenable number.

252440113 is a deficient number, since it is larger than the sum of its proper divisors (4763075).

252440113 is an equidigital number, since it uses as much as digits as its factorization.

252440113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763074.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 252440113 is about 15888.3640756372. The cubic root of 252440113 is about 632.0034591289.

Adding to 252440113 its reverse (311044252), we get a palindrome (563484365).

The spelling of 252440113 in words is "two hundred fifty-two million, four hundred forty thousand, one hundred thirteen".