15625000003 has 4 divisors (see below), whose sum is σ = 15632094808. Its totient is φ = 15617905200.

The previous prime is 15624999983. The next prime is 15625000007. The reversal of 15625000003 is 30000052651.

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 15625000003 - 2⁹ = 15624999491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15625000007) 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, 3544098 + ... + 3548503.

It is an arithmetic number, because the mean of its divisors is an integer number (3908023702).

Almost surely, 2^15625000003 is an apocalyptic number.

15625000003 is a deficient number, since it is larger than the sum of its proper divisors (7094805).

15625000003 is an equidigital number, since it uses as much as digits as its factorization.

15625000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7094804.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 15625000003 its reverse (30000052651), we get a palindrome (45625052654).

The spelling of 15625000003 in words is "fifteen billion, six hundred twenty-five million, three", and thus it is an aban number.