55055572120611 has 24 divisors (see below), whose sum is σ = 82287018450000. Its totient is φ = 35429423182272.

The previous prime is 55055572120603. The next prime is 55055572120673. The reversal of 55055572120611 is 11602127555055.

55055572120611 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 5 + 5 + 7 + 2 + 1 + 20 + 611 = 666.

It is not a de Polignac number, because 55055572120611 - 2³ = 55055572120603 is a prime.

It is a super-2 number, since 2×55055572120611² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55055572122611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24660936 + ... + 26800613.

It is an arithmetic number, because the mean of its divisors is an integer number (3428625768750).

Almost surely, 2^{55055572120611} is an apocalyptic number.

55055572120611 is a deficient number, since it is larger than the sum of its proper divisors (27231446329389).

55055572120611 is a wasteful number, since it uses less digits than its factorization.

55055572120611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51465683 (or 51465680 counting only the distinct ones).

The product of its (nonzero) digits is 525000, while the sum is 45.

Adding to 55055572120611 its reverse (11602127555055), we get a palindrome (66657699675666).

The spelling of 55055572120611 in words is "fifty-five trillion, fifty-five billion, five hundred seventy-two million, one hundred twenty thousand, six hundred eleven".