55333550011111 has 4 divisors (see below), whose sum is σ = 57241603459800. Its totient is φ = 53425496562424.

The previous prime is 55333550011109. The next prime is 55333550011123. The reversal of 55333550011111 is 11111005533355.

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 55333550011111 - 2¹ = 55333550011109 is a prime.

It is a super-3 number, since 3×55333550011111³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55333550011711) 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, 954026724301 + ... + 954026724358.

It is an arithmetic number, because the mean of its divisors is an integer number (14310400864950).

Almost surely, 2^{55333550011111} is an apocalyptic number.

55333550011111 is the 3326667-th centered decagonal number.

55333550011111 is a deficient number, since it is larger than the sum of its proper divisors (1908053448689).

55333550011111 is a wasteful number, since it uses less digits than its factorization.

55333550011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908053448688.

The product of its (nonzero) digits is 16875, while the sum is 34.

Adding to 55333550011111 its reverse (11111005533355), we get a palindrome (66444555544466).

The spelling of 55333550011111 in words is "fifty-five trillion, three hundred thirty-three billion, five hundred fifty million, eleven thousand, one hundred eleven".