4045525 has 24 divisors (see below), whose sum is σ = 5606784. Its totient is φ = 2870400.

The previous prime is 4045523. The next prime is 4045549. The reversal of 4045525 is 5255404.

It is not a de Polignac number, because 4045525 - 2¹ = 4045523 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4045525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12769 + ... + 13081.

It is an arithmetic number, because the mean of its divisors is an integer number (233616).

Almost surely, 2^4045525 is an apocalyptic number.

It is an amenable number.

4045525 is a deficient number, since it is larger than the sum of its proper divisors (1561259).

4045525 is a wasteful number, since it uses less digits than its factorization.

4045525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 4045525 is about 2011.3490497673. The cubic root of 4045525 is about 159.3400551348.

It can be divided in two parts, 404 and 5525, that added together give a square (5929 = 77²).

The spelling of 4045525 in words is "four million, forty-five thousand, five hundred twenty-five".