55321134867011 has 4 divisors (see below), whose sum is σ = 59576606779872. Its totient is φ = 51065662954152.

The previous prime is 55321134866999. The next prime is 55321134867017. The reversal of 55321134867011 is 11076843112355.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55321134867011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55321134867017) 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, 2127735956411 + ... + 2127735956436.

It is an arithmetic number, because the mean of its divisors is an integer number (14894151694968).

Almost surely, 2^{55321134867011} is an apocalyptic number.

55321134867011 is a deficient number, since it is larger than the sum of its proper divisors (4255471912861).

55321134867011 is a wasteful number, since it uses less digits than its factorization.

55321134867011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255471912860.

The product of its (nonzero) digits is 604800, while the sum is 47.

Adding to 55321134867011 its reverse (11076843112355), we get a palindrome (66397977979366).

The spelling of 55321134867011 in words is "fifty-five trillion, three hundred twenty-one billion, one hundred thirty-four million, eight hundred sixty-seven thousand, eleven".