425771 has 4 divisors (see below), whose sum is σ = 448200. Its totient is φ = 403344.

The previous prime is 425713. The next prime is 425779. The reversal of 425771 is 177524.

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 425771 - 2¹⁸ = 163627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425771.

It is not an unprimeable number, because it can be changed into a prime (425779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11186 + ... + 11223.

It is an arithmetic number, because the mean of its divisors is an integer number (112050).

2⁴²⁵⁷⁷¹ is an apocalyptic number.

425771 is a deficient number, since it is larger than the sum of its proper divisors (22429).

425771 is a wasteful number, since it uses less digits than its factorization.

425771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22428.

The product of its digits is 1960, while the sum is 26.

The square root of 425771 is about 652.5113025841. The cubic root of 425771 is about 75.2301669936.

The spelling of 425771 in words is "four hundred twenty-five thousand, seven hundred seventy-one".