550555001111 has 8 divisors (see below), whose sum is σ = 563370006144. Its totient is φ = 537740514360.

The previous prime is 550555001107. The next prime is 550555001153. The reversal of 550555001111 is 111100555055.

It is a happy number.

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 550555001111 - 2² = 550555001107 is a prime.

It is a super-2 number, since 2×550555001111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550555003111) 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, 2761766 + ... + 2954396.

It is an arithmetic number, because the mean of its divisors is an integer number (70421250768).

Almost surely, 2^550555001111 is an apocalyptic number.

550555001111 is a deficient number, since it is larger than the sum of its proper divisors (12815005033).

550555001111 is a wasteful number, since it uses less digits than its factorization.

550555001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259141.

The product of its (nonzero) digits is 3125, while the sum is 29.

Adding to 550555001111 its reverse (111100555055), we get a palindrome (661655556166).

The spelling of 550555001111 in words is "five hundred fifty billion, five hundred fifty-five million, one thousand, one hundred eleven".