252103503 has 4 divisors (see below), whose sum is σ = 336138008. Its totient is φ = 168069000.

The previous prime is 252103499. The next prime is 252103531. The reversal of 252103503 is 305301252.

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

It is not a de Polignac number, because 252103503 - 2² = 252103499 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 252103503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252103543) 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, 42017248 + ... + 42017253.

It is an arithmetic number, because the mean of its divisors is an integer number (84034502).

Almost surely, 2^252103503 is an apocalyptic number.

252103503 is a deficient number, since it is larger than the sum of its proper divisors (84034505).

252103503 is an equidigital number, since it uses as much as digits as its factorization.

252103503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84034504.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 252103503 is about 15877.7675697813. The cubic root of 252103503 is about 631.7224244061.

Adding to 252103503 its reverse (305301252), we get a palindrome (557404755).

The spelling of 252103503 in words is "two hundred fifty-two million, one hundred three thousand, five hundred three".