425601 has 16 divisors (see below), whose sum is σ = 688320. Its totient is φ = 257760.

The previous prime is 425591. The next prime is 425603. The reversal of 425601 is 106524.

It is a happy number.

It is not a de Polignac number, because 425601 - 2⁷ = 425473 is a prime.

It is a super-2 number, since 2×425601² = 362272422402, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (425603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (43020).

2⁴²⁵⁶⁰¹ is an apocalyptic number.

It is an amenable number.

425601 is a deficient number, since it is larger than the sum of its proper divisors (262719).

425601 is a wasteful number, since it uses less digits than its factorization.

425601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1447 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 425601 is about 652.3810236357. The cubic root of 425601 is about 75.2201531356.

The spelling of 425601 in words is "four hundred twenty-five thousand, six hundred one".