425855 has 8 divisors (see below), whose sum is σ = 520992. Its totient is φ = 334048.

The previous prime is 425851. The next prime is 425857. The reversal of 425855 is 558524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425855 - 2² = 425851 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 2⁵ + 8² + 5⁵ + 5⁶ + 5⁸ .

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425855.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 1068.

It is an arithmetic number, because the mean of its divisors is an integer number (65124).

2⁴²⁵⁸⁵⁵ is an apocalyptic number.

425855 is a deficient number, since it is larger than the sum of its proper divisors (95137).

425855 is a wasteful number, since it uses less digits than its factorization.

425855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665.

The product of its digits is 8000, while the sum is 29.

The square root of 425855 is about 652.5756661108. The cubic root of 425855 is about 75.2351140336.

The spelling of 425855 in words is "four hundred twenty-five thousand, eight hundred fifty-five".