86271525 has 18 divisors (see below), whose sum is σ = 154522290. Its totient is φ = 46011360.

The previous prime is 86271517. The next prime is 86271529. The reversal of 86271525 is 52517268.

It is a happy number.

86271525 is a `hidden beast` number, since 8 + 62 + 71 + 525 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 13527684 + 72743841 = 3678^2 + 8529^2 .

It is not a de Polignac number, because 86271525 - 2³ = 86271517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86271525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86271529) 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 17 ways as a sum of consecutive naturals, for example, 191490 + ... + 191939.

Almost surely, 2^86271525 is an apocalyptic number.

It is an amenable number.

86271525 is a deficient number, since it is larger than the sum of its proper divisors (68250765).

86271525 is a wasteful number, since it uses less digits than its factorization.

86271525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383445 (or 383437 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 86271525 is about 9288.2466052533. The cubic root of 86271525 is about 441.8645480130.

The spelling of 86271525 in words is "eighty-six million, two hundred seventy-one thousand, five hundred twenty-five".