252335437 has 6 divisors (see below), whose sum is σ = 268052138. Its totient is φ = 237491904.

The previous prime is 252335429. The next prime is 252335459. The reversal of 252335437 is 734533252.

252335437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 25260676 + 227074761 = 5026^2 + 15069^2 .

It is not a de Polignac number, because 252335437 - 2³ = 252335429 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 (252335407) 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, 436278 + ... + 436855.

Almost surely, 2^252335437 is an apocalyptic number.

It is an amenable number.

252335437 is a deficient number, since it is larger than the sum of its proper divisors (15716701).

252335437 is an equidigital number, since it uses as much as digits as its factorization.

252335437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873167 (or 873150 counting only the distinct ones).

The product of its digits is 75600, while the sum is 34.

The square root of 252335437 is about 15885.0696252802. The cubic root of 252335437 is about 631.9160922159.

Adding to 252335437 its reverse (734533252), we get a palindrome (986868689).

The spelling of 252335437 in words is "two hundred fifty-two million, three hundred thirty-five thousand, four hundred thirty-seven".