550001010091 has 8 divisors (see below), whose sum is σ = 592315156944. Its totient is φ = 507687774240.

The previous prime is 550001010071. The next prime is 550001010107. The reversal of 550001010091 is 190010100055.

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 550001010091 - 2¹⁷ = 550000879019 is a prime.

It is a super-2 number, since 2×550001010091² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550001010071) 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, 1526865 + ... + 1852381.

It is an arithmetic number, because the mean of its divisors is an integer number (74039394618).

Almost surely, 2^550001010091 is an apocalyptic number.

550001010091 is a deficient number, since it is larger than the sum of its proper divisors (42314146853).

550001010091 is a wasteful number, since it uses less digits than its factorization.

550001010091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455501.

The product of its (nonzero) digits is 225, while the sum is 22.

The spelling of 550001010091 in words is "five hundred fifty billion, one million, ten thousand, ninety-one".