425172163 has 16 divisors (see below), whose sum is σ = 462520800. Its totient is φ = 388512000.

The previous prime is 425172149. The next prime is 425172169. The reversal of 425172163 is 361271524.

It is a cyclic number.

It is not a de Polignac number, because 425172163 - 2⁵ = 425172131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425172169) 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, 746943 + ... + 747511.

It is an arithmetic number, because the mean of its divisors is an integer number (28907550).

Almost surely, 2^425172163 is an apocalyptic number.

425172163 is a deficient number, since it is larger than the sum of its proper divisors (37348637).

425172163 is a wasteful number, since it uses less digits than its factorization.

425172163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its digits is 10080, while the sum is 31.

The square root of 425172163 is about 20619.7032713858. The cubic root of 425172163 is about 751.9488061903.

The spelling of 425172163 in words is "four hundred twenty-five million, one hundred seventy-two thousand, one hundred sixty-three".