4065525 has 48 divisors (see below), whose sum is σ = 7886400. Its totient is φ = 2047680.

The previous prime is 4065517. The next prime is 4065527. The reversal of 4065525 is 5255604.

4065525 is a `hidden beast` number, since 4 + 0 + 655 + 2 + 5 = 666.

It is not a de Polignac number, because 4065525 - 2³ = 4065517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

4065525 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12667 + ... + 12983.

It is an arithmetic number, because the mean of its divisors is an integer number (164300).

Almost surely, 2^4065525 is an apocalyptic number.

4065525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4065525 is a deficient number, since it is larger than the sum of its proper divisors (3820875).

4065525 is a wasteful number, since it uses less digits than its factorization.

4065525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 4065525 is about 2016.3147075792. The cubic root of 4065525 is about 159.6022019030.

The spelling of 4065525 in words is "four million, sixty-five thousand, five hundred twenty-five".