4550091 has 24 divisors (see below), whose sum is σ = 7603344. Its totient is φ = 2399040.

The previous prime is 4550069. The next prime is 4550093. The reversal of 4550091 is 1900554.

It is not a de Polignac number, because 4550091 - 2⁵ = 4550059 is a prime.

4550091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4550093) 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 23 ways as a sum of consecutive naturals, for example, 721 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (316806).

Almost surely, 2^4550091 is an apocalyptic number.

4550091 is a deficient number, since it is larger than the sum of its proper divisors (3053253).

4550091 is a wasteful number, since it uses less digits than its factorization.

4550091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 4550091 is about 2133.0942313925. The cubic root of 4550091 is about 165.7066843308.

The spelling of 4550091 in words is "four million, five hundred fifty thousand, ninety-one".