15225312003 has 16 divisors (see below), whose sum is σ = 22744448256. Its totient is φ = 8978070240.

The previous prime is 15225311947. The next prime is 15225312017. The reversal of 15225312003 is 30021352251.

It is a happy number.

It is not a de Polignac number, because 15225312003 - 2⁶ = 15225311939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15225312073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6233551 + ... + 6235992.

It is an arithmetic number, because the mean of its divisors is an integer number (1421528016).

Almost surely, 2^15225312003 is an apocalyptic number.

15225312003 is a deficient number, since it is larger than the sum of its proper divisors (7519136253).

15225312003 is a wasteful number, since it uses less digits than its factorization.

15225312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12469594.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 15225312003 its reverse (30021352251), we get a palindrome (45246664254).

The spelling of 15225312003 in words is "fifteen billion, two hundred twenty-five million, three hundred twelve thousand, three".