825542 has 4 divisors (see below), whose sum is σ = 1238316. Its totient is φ = 412770.

The previous prime is 825533. The next prime is 825547. The reversal of 825542 is 245528.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206384 + ... + 206387.

It is an arithmetic number, because the mean of its divisors is an integer number (309579).

2⁸²⁵⁵⁴² is an apocalyptic number.

825542 is a deficient number, since it is larger than the sum of its proper divisors (412774).

825542 is a wasteful number, since it uses less digits than its factorization.

825542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412773.

The product of its digits is 3200, while the sum is 26.

The square root of 825542 is about 908.5934184221. The cubic root of 825542 is about 93.8094070880.

The spelling of 825542 in words is "eight hundred twenty-five thousand, five hundred forty-two".