55571122726771 has 4 divisors (see below), whose sum is σ = 58840012298952. Its totient is φ = 52302233154592.

The previous prime is 55571122726741. The next prime is 55571122726831. The reversal of 55571122726771 is 17762722117555.

55571122726771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-55571122726771 is a prime.

It is a super-2 number, since 2×55571122726771² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55571122726741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634444786065 + ... + 1634444786098.

It is an arithmetic number, because the mean of its divisors is an integer number (14710003074738).

Almost surely, 2^{55571122726771} is an apocalyptic number.

55571122726771 is a deficient number, since it is larger than the sum of its proper divisors (3268889572181).

55571122726771 is a wasteful number, since it uses less digits than its factorization.

55571122726771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3268889572180.

The product of its digits is 14406000, while the sum is 58.

The spelling of 55571122726771 in words is "fifty-five trillion, five hundred seventy-one billion, one hundred twenty-two million, seven hundred twenty-six thousand, seven hundred seventy-one".