550091091 has 8 divisors (see below), whose sum is σ = 800132544. Its totient is φ = 333388520.

The previous prime is 550091089. The next prime is 550091167. The reversal of 550091091 is 190190055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550091091 - 2¹ = 550091089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550091291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8334681 + ... + 8334746.

It is an arithmetic number, because the mean of its divisors is an integer number (100016568).

Almost surely, 2^550091091 is an apocalyptic number.

550091091 is a deficient number, since it is larger than the sum of its proper divisors (250041453).

550091091 is a wasteful number, since it uses less digits than its factorization.

550091091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16669441.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 550091091 is about 23454.0207853579. The cubic root of 550091091 is about 819.3665001000.

The spelling of 550091091 in words is "five hundred fifty million, ninety-one thousand, ninety-one".