550091909885 has 16 divisors (see below), whose sum is σ = 754424150400. Its totient is φ = 377199686976.

The previous prime is 550091909881. The next prime is 550091909923. The reversal of 550091909885 is 588909190055.

It is not a de Polignac number, because 550091909885 - 2² = 550091909881 is a prime.

It is a super-2 number, since 2×550091909885² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550091909881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3366251 + ... + 3525879.

It is an arithmetic number, because the mean of its divisors is an integer number (47151509400).

Almost surely, 2^550091909885 is an apocalyptic number.

It is an amenable number.

550091909885 is a deficient number, since it is larger than the sum of its proper divisors (204332240515).

550091909885 is a wasteful number, since it uses less digits than its factorization.

550091909885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258100.

The product of its (nonzero) digits is 5832000, while the sum is 59.

The spelling of 550091909885 in words is "five hundred fifty billion, ninety-one million, nine hundred nine thousand, eight hundred eighty-five".