4390525 has 6 divisors (see below), whose sum is σ = 5444282. Its totient is φ = 3512400.

The previous prime is 4390523. The next prime is 4390541. The reversal of 4390525 is 5250934.

It can be written as a sum of positive squares in 3 ways, for example, as 964324 + 3426201 = 982^2 + 1851^2 .

It is not a de Polignac number, because 4390525 - 2¹ = 4390523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4390493 and 4390502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87786 + ... + 87835.

Almost surely, 2^4390525 is an apocalyptic number.

It is an amenable number.

4390525 is a deficient number, since it is larger than the sum of its proper divisors (1053757).

4390525 is a wasteful number, since it uses less digits than its factorization.

4390525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175631 (or 175626 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 4390525 is about 2095.3579646447. The cubic root of 4390525 is about 163.7465473312.

The spelling of 4390525 in words is "four million, three hundred ninety thousand, five hundred twenty-five".