871525 has 12 divisors (see below), whose sum is σ = 1098144. Its totient is φ = 686000.

The previous prime is 871517. The next prime is 871531. The reversal of 871525 is 525178.

871525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 871525 - 2³ = 871517 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 871493 and 871502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530 + ... + 2020.

It is an arithmetic number, because the mean of its divisors is an integer number (91512).

2⁸⁷¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

871525 is a deficient number, since it is larger than the sum of its proper divisors (226619).

871525 is a wasteful number, since it uses less digits than its factorization.

871525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 567 counting only the distinct ones).

The product of its digits is 2800, while the sum is 28.

The square root of 871525 is about 933.5550331930. Note that the first 3 decimals coincide. The cubic root of 871525 is about 95.5197733240.

The spelling of 871525 in words is "eight hundred seventy-one thousand, five hundred twenty-five".