252431013 has 8 divisors (see below), whose sum is σ = 336656800. Its totient is φ = 168246288.

The previous prime is 252430987. The next prime is 252431033. The reversal of 252431013 is 310134252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-252431013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252431033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9543 + ... + 24411.

It is an arithmetic number, because the mean of its divisors is an integer number (42082100).

Almost surely, 2^252431013 is an apocalyptic number.

It is an amenable number.

252431013 is a deficient number, since it is larger than the sum of its proper divisors (84225787).

252431013 is a wasteful number, since it uses less digits than its factorization.

252431013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20531.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 252431013 is about 15888.0776999611. The cubic root of 252431013 is about 631.9958648517.

Adding to 252431013 its reverse (310134252), we get a palindrome (562565265).

The spelling of 252431013 in words is "two hundred fifty-two million, four hundred thirty-one thousand, thirteen".