252743603 has 4 divisors (see below), whose sum is σ = 288849840. Its totient is φ = 216637368.

The previous prime is 252743537. The next prime is 252743609. The reversal of 252743603 is 306347252.

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 252743603 - 2¹² = 252739507 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 252743603.

It is not an unprimeable number, because it can be changed into a prime (252743609) 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, 18053108 + ... + 18053121.

It is an arithmetic number, because the mean of its divisors is an integer number (72212460).

Almost surely, 2^252743603 is an apocalyptic number.

252743603 is a deficient number, since it is larger than the sum of its proper divisors (36106237).

252743603 is an equidigital number, since it uses as much as digits as its factorization.

252743603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36106236.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 252743603 is about 15897.9119069141. The cubic root of 252743603 is about 632.2566279747.

The spelling of 252743603 in words is "two hundred fifty-two million, seven hundred forty-three thousand, six hundred three".