425856 has 32 divisors (see below), whose sum is σ = 1132200. Its totient is φ = 141824.

The previous prime is 425851. The next prime is 425857. The reversal of 425856 is 658524.

It is a tau number, because it is divible by the number of its divisors (32).

It is a d-powerful number, because it can be written as 4⁷ + 2¹⁷ + 8⁶ + 5⁴ + 5⁶ + 6 .

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425851) by changing a digit.

425856 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171 + ... + 938.

2⁴²⁵⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

425856 is an abundant number, since it is smaller than the sum of its proper divisors (706344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425856 is a wasteful number, since it uses less digits than its factorization.

425856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1114 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 425856 is about 652.5764323051. The cubic root of 425856 is about 75.2351729230.

The spelling of 425856 in words is "four hundred twenty-five thousand, eight hundred fifty-six".