4398525 has 36 divisors (see below), whose sum is σ = 7993908. Its totient is φ = 2311680.

The previous prime is 4398503. The next prime is 4398553. The reversal of 4398525 is 5258934.

4398525 is a `hidden beast` number, since 43 + 98 + 525 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 224676 + 4173849 = 474^2 + 2043^2 .

It is not a de Polignac number, because 4398525 - 2⁷ = 4398397 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4398525.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 25339 + ... + 25511.

It is an arithmetic number, because the mean of its divisors is an integer number (222053).

Almost surely, 2^4398525 is an apocalyptic number.

4398525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4398525 is a deficient number, since it is larger than the sum of its proper divisors (3595383).

4398525 is a wasteful number, since it uses less digits than its factorization.

4398525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 294 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 4398525 is about 2097.2660775400. The cubic root of 4398525 is about 163.8459414847.

The spelling of 4398525 in words is "four million, three hundred ninety-eight thousand, five hundred twenty-five".