4545425 has 12 divisors (see below), whose sum is σ = 5689740. Its totient is φ = 3601920.

The previous prime is 4545403. The next prime is 4545433. The reversal of 4545425 is 5245454.

It is a Cunningham number, because it is equal to 2132²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 101761 + 4443664 = 319^2 + 2108^2 .

It is not a de Polignac number, because 4545425 - 2⁶ = 4545361 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2021 + ... + 3629.

It is an arithmetic number, because the mean of its divisors is an integer number (474145).

Almost surely, 2^4545425 is an apocalyptic number.

It is an amenable number.

4545425 is a deficient number, since it is larger than the sum of its proper divisors (1144315).

4545425 is a wasteful number, since it uses less digits than its factorization.

4545425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 1727 counting only the distinct ones).

The product of its digits is 16000, while the sum is 29.

The square root of 4545425 is about 2132.0002345216. Note that the first 3 decimals coincide. The cubic root of 4545425 is about 165.6500223260.

Adding to 4545425 its sum of digits (29), we get a palindrome (4545454).

The spelling of 4545425 in words is "four million, five hundred forty-five thousand, four hundred twenty-five".