15171103430425 has 12 divisors (see below), whose sum is σ = 18818302084816. Its totient is φ = 12132925434000.

The previous prime is 15171103430389. The next prime is 15171103430449. The reversal of 15171103430425 is 52403430117151.

15171103430425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15171103430425 - 2²¹ = 15171101333273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98854551 + ... + 99007900.

Almost surely, 2^{15171103430425} is an apocalyptic number.

It is an amenable number.

15171103430425 is a deficient number, since it is larger than the sum of its proper divisors (3647198654391).

15171103430425 is a wasteful number, since it uses less digits than its factorization.

15171103430425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197865528 (or 197865523 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 15171103430425 its reverse (52403430117151), we get a palindrome (67574533547576).

The spelling of 15171103430425 in words is "fifteen trillion, one hundred seventy-one billion, one hundred three million, four hundred thirty thousand, four hundred twenty-five".