522831 has 8 divisors (see below), whose sum is σ = 708784. Its totient is φ = 342720.

The previous prime is 522829. The next prime is 522839. The reversal of 522831 is 138225.

522831 is nontrivially palindromic in base 5.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 522831 - 2¹ = 522829 is a prime.

It is a super-2 number, since 2×522831² = 546704509122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 522798 and 522807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246 + ... + 1611.

It is an arithmetic number, because the mean of its divisors is an integer number (88598).

2⁵²²⁸³¹ is an apocalyptic number.

522831 is a deficient number, since it is larger than the sum of its proper divisors (185953).

522831 is a wasteful number, since it uses less digits than its factorization.

522831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921.

The product of its digits is 480, while the sum is 21.

The square root of 522831 is about 723.0705359783. The cubic root of 522831 is about 80.5601828671.

The spelling of 522831 in words is "five hundred twenty-two thousand, eight hundred thirty-one".