1252503203 has 32 divisors (see below), whose sum is σ = 1586635776. Its totient is φ = 963376128.

The previous prime is 1252503181. The next prime is 1252503211. The reversal of 1252503203 is 3023052521.

It is not a de Polignac number, because 1252503203 - 2¹⁰ = 1252502179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252503223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1211975 + ... + 1213007.

It is an arithmetic number, because the mean of its divisors is an integer number (49582368).

Almost surely, 2^1252503203 is an apocalyptic number.

1252503203 is a deficient number, since it is larger than the sum of its proper divisors (334132573).

1252503203 is a wasteful number, since it uses less digits than its factorization.

1252503203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1252503203 is about 35390.7219903748. The cubic root of 1252503203 is about 1077.9359305423.

Adding to 1252503203 its reverse (3023052521), we get a palindrome (4275555724).

The spelling of 1252503203 in words is "one billion, two hundred fifty-two million, five hundred three thousand, two hundred three".