82425 has 24 divisors (see below), whose sum is σ = 156736. Its totient is φ = 37440.

The previous prime is 82421. The next prime is 82457. The reversal of 82425 is 52428.

It is not a de Polignac number, because 82425 - 2² = 82421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 447 + ... + 603.

2⁸²⁴²⁵ is an apocalyptic number.

It is an amenable number.

82425 is a deficient number, since it is larger than the sum of its proper divisors (74311).

82425 is a wasteful number, since it uses less digits than its factorization.

82425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 172 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 82425 is about 287.0975443991. The cubic root of 82425 is about 43.5197426568.

The spelling of 82425 in words is "eighty-two thousand, four hundred twenty-five".