825575 has 6 divisors (see below), whose sum is σ = 1023744. Its totient is φ = 660440.

The previous prime is 825553. The next prime is 825577. The reversal of 825575 is 575528.

It is a happy number.

It is not a de Polignac number, because 825575 - 2¹² = 821479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825577) 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 5 ways as a sum of consecutive naturals, for example, 16487 + ... + 16536.

It is an arithmetic number, because the mean of its divisors is an integer number (170624).

2⁸²⁵⁵⁷⁵ is an apocalyptic number.

825575 is a deficient number, since it is larger than the sum of its proper divisors (198169).

825575 is a wasteful number, since it uses less digits than its factorization.

825575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33033 (or 33028 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 825575 is about 908.6115781785. The cubic root of 825575 is about 93.8106570422.

Subtracting from 825575 its reverse (575528), we obtain a cube (250047 = 63³).

The spelling of 825575 in words is "eight hundred twenty-five thousand, five hundred seventy-five".