550875091 has 4 divisors (see below), whose sum is σ = 593250112. Its totient is φ = 508500072.

The previous prime is 550875041. The next prime is 550875103. The reversal of 550875091 is 190578055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190578055 = 5 ⋅38115611.

It is a cyclic number.

It is not a de Polignac number, because 550875091 - 2¹⁵ = 550842323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550875011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21187491 + ... + 21187516.

It is an arithmetic number, because the mean of its divisors is an integer number (148312528).

Almost surely, 2^550875091 is an apocalyptic number.

550875091 is a deficient number, since it is larger than the sum of its proper divisors (42375021).

550875091 is a wasteful number, since it uses less digits than its factorization.

550875091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42375020.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 550875091 is about 23470.7283866522. The cubic root of 550875091 is about 819.7555740850.

The spelling of 550875091 in words is "five hundred fifty million, eight hundred seventy-five thousand, ninety-one".