252108449 has 4 divisors (see below), whose sum is σ = 252156036. Its totient is φ = 252060864.

The previous prime is 252108443. The next prime is 252108463. The reversal of 252108449 is 944801252.

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 211557025 + 40551424 = 14545^2 + 6368^2 .

It is a cyclic number.

It is not a de Polignac number, because 252108449 - 2⁸ = 252108193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252108443) 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, 14684 + ... + 26829.

It is an arithmetic number, because the mean of its divisors is an integer number (63039009).

Almost surely, 2^252108449 is an apocalyptic number.

It is an amenable number.

252108449 is a deficient number, since it is larger than the sum of its proper divisors (47587).

252108449 is an equidigital number, since it uses as much as digits as its factorization.

252108449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47586.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 252108449 is about 15877.9233213919. The cubic root of 252108449 is about 631.7265556176.

The spelling of 252108449 in words is "two hundred fifty-two million, one hundred eight thousand, four hundred forty-nine".