4553649 has 6 divisors (see below), whose sum is σ = 6577506. Its totient is φ = 3035760.

The previous prime is 4553641. The next prime is 4553651. The reversal of 4553649 is 9463554.

It is a happy number.

4553649 is a `hidden beast` number, since 4 + 5 + 5 + 3 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3873024 + 680625 = 1968^2 + 825^2 .

It is not a de Polignac number, because 4553649 - 2³ = 4553641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4553641) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 252972 + ... + 252989.

It is an arithmetic number, because the mean of its divisors is an integer number (1096251).

Almost surely, 2^4553649 is an apocalyptic number.

It is an amenable number.

4553649 is a deficient number, since it is larger than the sum of its proper divisors (2023857).

4553649 is a wasteful number, since it uses less digits than its factorization.

4553649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505967 (or 505964 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 4553649 is about 2133.9280681410. The cubic root of 4553649 is about 165.7498652088.

The spelling of 4553649 in words is "four million, five hundred fifty-three thousand, six hundred forty-nine".