425558 has 16 divisors (see below), whose sum is σ = 738720. Its totient is φ = 180096.

The previous prime is 425549. The next prime is 425563. The reversal of 425558 is 855524.

It is a super-3 number, since 3×425558³ = 231205165238523336, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448 + ... + 1716.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2⁴²⁵⁵⁵⁸ is an apocalyptic number.

425558 is a deficient number, since it is larger than the sum of its proper divisors (313162).

425558 is a wasteful number, since it uses less digits than its factorization.

425558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

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

The square root of 425558 is about 652.3480666025. The cubic root of 425558 is about 75.2176197961.

The spelling of 425558 in words is "four hundred twenty-five thousand, five hundred fifty-eight".