825061 has 4 divisors (see below), whose sum is σ = 873612. Its totient is φ = 776512.

The previous prime is 825059. The next prime is 825067. The reversal of 825061 is 160528.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 136161 = 830^2 + 369^2 .

It is a cyclic number.

It is not a de Polignac number, because 825061 - 2¹ = 825059 is a prime.

It is a Duffinian number.

825061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825067) 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 3 ways as a sum of consecutive naturals, for example, 24250 + ... + 24283.

It is an arithmetic number, because the mean of its divisors is an integer number (218403).

2⁸²⁵⁰⁶¹ is an apocalyptic number.

It is an amenable number.

825061 is a deficient number, since it is larger than the sum of its proper divisors (48551).

825061 is a wasteful number, since it uses less digits than its factorization.

825061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48550.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 825061 is about 908.3286850034. The cubic root of 825061 is about 93.7911842755.

Adding to 825061 its reverse (160528), we get a palindrome (985589).

The spelling of 825061 in words is "eight hundred twenty-five thousand, sixty-one".