252317837 has 4 divisors (see below), whose sum is σ = 259137276. Its totient is φ = 245498400.

The previous prime is 252317827. The next prime is 252317839. The reversal of 252317837 is 738713252.

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 113337316 + 138980521 = 10646^2 + 11789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252317837 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 252317837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252317839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409664 + ... + 3409737.

It is an arithmetic number, because the mean of its divisors is an integer number (64784319).

Almost surely, 2^252317837 is an apocalyptic number.

It is an amenable number.

252317837 is a deficient number, since it is larger than the sum of its proper divisors (6819439).

252317837 is an equidigital number, since it uses as much as digits as its factorization.

252317837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819438.

The product of its digits is 70560, while the sum is 38.

The square root of 252317837 is about 15884.5156363044. The cubic root of 252317837 is about 631.9014001564.

The spelling of 252317837 in words is "two hundred fifty-two million, three hundred seventeen thousand, eight hundred thirty-seven".