4086525 has 36 divisors (see below), whose sum is σ = 7131488. Its totient is φ = 2064480.

The previous prime is 4086521. The next prime is 4086527. The reversal of 4086525 is 5256804.

It is not a de Polignac number, because 4086525 - 2² = 4086521 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

4086525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4086492 and 4086501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4086521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 39624 + ... + 39726.

Almost surely, 2^4086525 is an apocalyptic number.

It is an amenable number.

4086525 is a deficient number, since it is larger than the sum of its proper divisors (3044963).

4086525 is a wasteful number, since it uses less digits than its factorization.

4086525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 4086525 is about 2021.5155205934. The cubic root of 4086525 is about 159.8765323520.

The spelling of 4086525 in words is "four million, eighty-six thousand, five hundred twenty-five".