425284173 has 12 divisors (see below), whose sum is σ = 614562780. Its totient is φ = 283401216.

The previous prime is 425284169. The next prime is 425284199. The reversal of 425284173 is 371482524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131744484 + 293539689 = 11478^2 + 17133^2 .

It is not a de Polignac number, because 425284173 - 2² = 425284169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425284073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15415 + ... + 32987.

It is an arithmetic number, because the mean of its divisors is an integer number (51213565).

Almost surely, 2^425284173 is an apocalyptic number.

It is an amenable number.

425284173 is a deficient number, since it is larger than the sum of its proper divisors (189278607).

425284173 is a wasteful number, since it uses less digits than its factorization.

425284173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20268 (or 20265 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 425284173 is about 20622.4191839852. The cubic root of 425284173 is about 752.0148330832.

The spelling of 425284173 in words is "four hundred twenty-five million, two hundred eighty-four thousand, one hundred seventy-three".