550100561111 has 4 divisors (see below), whose sum is σ = 551353638000. Its totient is φ = 548847484224.

The previous prime is 550100561107. The next prime is 550100561119. The reversal of 550100561111 is 111165001055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550100561111 - 2² = 550100561107 is a prime.

It is a super-2 number, since 2×550100561111² (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 (550100561119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626537786 + ... + 626538663.

It is an arithmetic number, because the mean of its divisors is an integer number (137838409500).

Almost surely, 2^550100561111 is an apocalyptic number.

550100561111 is a deficient number, since it is larger than the sum of its proper divisors (1253076889).

550100561111 is a wasteful number, since it uses less digits than its factorization.

550100561111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253076888.

The product of its (nonzero) digits is 750, while the sum is 26.

Adding to 550100561111 its reverse (111165001055), we get a palindrome (661265562166).

The spelling of 550100561111 in words is "five hundred fifty billion, one hundred million, five hundred sixty-one thousand, one hundred eleven".