526813 has 16 divisors (see below), whose sum is σ = 673920. Its totient is φ = 400896.

The previous prime is 526781. The next prime is 526829. The reversal of 526813 is 318625.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 526813 - 2⁵ = 526781 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 (526853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145 + ... + 2377.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2⁵²⁶⁸¹³ is an apocalyptic number.

It is an amenable number.

526813 is a deficient number, since it is larger than the sum of its proper divisors (147107).

526813 is a wasteful number, since it uses less digits than its factorization.

526813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its digits is 1440, while the sum is 25.

The square root of 526813 is about 725.8188479228. The cubic root of 526813 is about 80.7641873937.

The spelling of 526813 in words is "five hundred twenty-six thousand, eight hundred thirteen".