825455 has 8 divisors (see below), whose sum is σ = 1042800. Its totient is φ = 625536.

The previous prime is 825443. The next prime is 825467. The reversal of 825455 is 554528.

It is an interprime number because it is at equal distance from previous prime (825443) and next prime (825467).

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 825455 - 2⁴ = 825439 is a prime.

It is a d-powerful number, because it can be written as 8⁵ + 2¹⁹ + 4⁹ + 5 + 5⁵ + 5⁵ .

It is a congruent number.

It is an unprimeable number.

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, 4250 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (130350).

2⁸²⁵⁴⁵⁵ is an apocalyptic number.

825455 is a deficient number, since it is larger than the sum of its proper divisors (217345).

825455 is a wasteful number, since it uses less digits than its factorization.

825455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713.

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

The square root of 825455 is about 908.5455409609. The cubic root of 825455 is about 93.8061115944.

The spelling of 825455 in words is "eight hundred twenty-five thousand, four hundred fifty-five".