252144503 has 4 divisors (see below), whose sum is σ = 271540248. Its totient is φ = 232748760.

The previous prime is 252144491. The next prime is 252144511. The reversal of 252144503 is 305441252.

It is a happy number.

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 252144503 - 2⁶ = 252144439 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 (252144523) 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, 9697853 + ... + 9697878.

It is an arithmetic number, because the mean of its divisors is an integer number (67885062).

Almost surely, 2^252144503 is an apocalyptic number.

252144503 is a deficient number, since it is larger than the sum of its proper divisors (19395745).

252144503 is a wasteful number, since it uses less digits than its factorization.

252144503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19395744.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 252144503 is about 15879.0586307879. The cubic root of 252144503 is about 631.7566685626.

Adding to 252144503 its reverse (305441252), we get a palindrome (557585755).

The spelling of 252144503 in words is "two hundred fifty-two million, one hundred forty-four thousand, five hundred three".