825475 has 24 divisors (see below), whose sum is σ = 1205280. Its totient is φ = 549120.

The previous prime is 825467. The next prime is 825479. The reversal of 825475 is 574528.

It is not a de Polignac number, because 825475 - 2³ = 825467 is a prime.

825475 is a lucky number.

It is a nialpdrome in base 16.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825479) 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, 9231 + ... + 9319.

It is an arithmetic number, because the mean of its divisors is an integer number (50220).

2⁸²⁵⁴⁷⁵ is an apocalyptic number.

825475 is the 742-nd pentagonal number.

825475 is a deficient number, since it is larger than the sum of its proper divisors (379805).

825475 is a wasteful number, since it uses less digits than its factorization.

825475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 154 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 825475 is about 908.5565474972. The cubic root of 825475 is about 93.8068691996.

The spelling of 825475 in words is "eight hundred twenty-five thousand, four hundred seventy-five".