4409525 has 12 divisors (see below), whose sum is σ = 5498532. Its totient is φ = 3507840.

The previous prime is 4409519. The next prime is 4409527. The reversal of 4409525 is 5259044.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 252004 + 4157521 = 502^2 + 2039^2 .

It is not a de Polignac number, because 4409525 - 2⁸ = 4409269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4409527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5447 + ... + 6203.

It is an arithmetic number, because the mean of its divisors is an integer number (458211).

Almost surely, 2^4409525 is an apocalyptic number.

It is an amenable number.

4409525 is a deficient number, since it is larger than the sum of its proper divisors (1089007).

4409525 is a wasteful number, since it uses less digits than its factorization.

4409525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 4409525 is about 2099.8869017164. The cubic root of 4409525 is about 163.9824118557.

The spelling of 4409525 in words is "four million, four hundred nine thousand, five hundred twenty-five".