4006525 has 12 divisors (see below), whose sum is σ = 5084992. Its totient is φ = 3129840.

The previous prime is 4006523. The next prime is 4006529. The reversal of 4006525 is 5256004.

It is not a de Polignac number, because 4006525 - 2¹ = 4006523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4006496 and 4006505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 789 + ... + 2938.

Almost surely, 2^4006525 is an apocalyptic number.

It is an amenable number.

4006525 is a deficient number, since it is larger than the sum of its proper divisors (1078467).

4006525 is a wasteful number, since it uses less digits than its factorization.

4006525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780 (or 3775 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 4006525 is about 2001.6305852979. The cubic root of 4006525 is about 158.8263732378.

The spelling of 4006525 in words is "four million, six thousand, five hundred twenty-five".