252317543 has 4 divisors (see below), whose sum is σ = 252729768. Its totient is φ = 251905320.

The previous prime is 252317503. The next prime is 252317551. The reversal of 252317543 is 345713252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252317543 - 2⁸ = 252317287 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 (252317503) 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, 205193 + ... + 206418.

It is an arithmetic number, because the mean of its divisors is an integer number (63182442).

Almost surely, 2^252317543 is an apocalyptic number.

252317543 is a deficient number, since it is larger than the sum of its proper divisors (412225).

252317543 is an equidigital number, since it uses as much as digits as its factorization.

252317543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412224.

The product of its digits is 25200, while the sum is 32.

The square root of 252317543 is about 15884.5063820063. The cubic root of 252317543 is about 631.9011547264.

The spelling of 252317543 in words is "two hundred fifty-two million, three hundred seventeen thousand, five hundred forty-three".