425539 has 8 divisors (see below), whose sum is σ = 444528. Its totient is φ = 407040.

The previous prime is 425533. The next prime is 425549. The reversal of 425539 is 935524.

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 425539 - 2⁹ = 425027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3924 + ... + 4030.

It is an arithmetic number, because the mean of its divisors is an integer number (55566).

2⁴²⁵⁵³⁹ is an apocalyptic number.

425539 is a deficient number, since it is larger than the sum of its proper divisors (18989).

425539 is a wasteful number, since it uses less digits than its factorization.

425539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

The product of its digits is 5400, while the sum is 28.

The square root of 425539 is about 652.3335036620. Note that the first 3 decimals coincide. The cubic root of 425539 is about 75.2165003592.

The spelling of 425539 in words is "four hundred twenty-five thousand, five hundred thirty-nine".