875531 has 4 divisors (see below), whose sum is σ = 899232. Its totient is φ = 851832.

The previous prime is 875521. The next prime is 875543. The reversal of 875531 is 135578.

875531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135578 = 2 ⋅67789.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-875531 is a prime.

It is a super-2 number, since 2×875531² = 1533109063922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 875494 and 875503.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 875531.

It is not an unprimeable number, because it can be changed into a prime (875521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11795 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (224808).

2⁸⁷⁵⁵³¹ is an apocalyptic number.

875531 is a deficient number, since it is larger than the sum of its proper divisors (23701).

875531 is a wasteful number, since it uses less digits than its factorization.

875531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23700.

The product of its digits is 4200, while the sum is 29.

The square root of 875531 is about 935.6981350842. The cubic root of 875531 is about 95.6659031587.

The spelling of 875531 in words is "eight hundred seventy-five thousand, five hundred thirty-one".