84187525 has 12 divisors (see below), whose sum is σ = 104702500. Its totient is φ = 67150080.

The previous prime is 84187501. The next prime is 84187531. The reversal of 84187525 is 52578148.

It can be written as a sum of positive squares in 6 ways, for example, as 5013121 + 79174404 = 2239^2 + 8898^2 .

It is not a de Polignac number, because 84187525 - 2⁹ = 84187013 is a prime.

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, 3901 + ... + 13549.

Almost surely, 2^84187525 is an apocalyptic number.

It is an amenable number.

84187525 is a deficient number, since it is larger than the sum of its proper divisors (20514975).

84187525 is a wasteful number, since it uses less digits than its factorization.

84187525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10008 (or 10003 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 84187525 is about 9175.3760140934. The cubic root of 84187525 is about 438.2775722978.

The spelling of 84187525 in words is "eighty-four million, one hundred eighty-seven thousand, five hundred twenty-five".