425571 has 8 divisors (see below), whose sum is σ = 580800. Its totient is φ = 277032.

The previous prime is 425563. The next prime is 425591. The reversal of 425571 is 175524.

425571 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 425571 - 2³ = 425563 is a prime.

It is a super-3 number, since 3×425571³ = 231226354540333233, which contains 333 as substring. Note that it is a super-d number also for d = 2.

425571 is strictly pandigital in base 7.

425571 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (425501) 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, 1521 + ... + 1778.

It is an arithmetic number, because the mean of its divisors is an integer number (72600).

2⁴²⁵⁵⁷¹ is an apocalyptic number.

425571 is a deficient number, since it is larger than the sum of its proper divisors (155229).

425571 is a wasteful number, since it uses less digits than its factorization.

425571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345.

The product of its digits is 1400, while the sum is 24.

The square root of 425571 is about 652.3580305323. The cubic root of 425571 is about 75.2183857075.

Subtracting from 425571 its reverse (175524), we obtain a cube (250047 = 63³).

The spelling of 425571 in words is "four hundred twenty-five thousand, five hundred seventy-one".