4550545 has 4 divisors (see below), whose sum is σ = 5460660. Its totient is φ = 3640432.

The previous prime is 4550501. The next prime is 4550563. The reversal of 4550545 is 5450554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2556801 + 1993744 = 1599^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550545 - 2¹⁹ = 4026257 is a prime.

4550545 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455050 + ... + 455059.

It is an arithmetic number, because the mean of its divisors is an integer number (1365165).

Almost surely, 2^4550545 is an apocalyptic number.

It is an amenable number.

4550545 is a deficient number, since it is larger than the sum of its proper divisors (910115).

4550545 is an equidigital number, since it uses as much as digits as its factorization.

4550545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910114.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 4550545 is about 2133.2006469153. The cubic root of 4550545 is about 165.7121954538.

Subtracting 4550545 from its reverse (5450554), we obtain a palindrome (900009).

The spelling of 4550545 in words is "four million, five hundred fifty thousand, five hundred forty-five".