55071071111 has 8 divisors (see below), whose sum is σ = 62948678304. Its totient is φ = 47196041760.

The previous prime is 55071071063. The next prime is 55071071129. The reversal of 55071071111 is 11117017055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-55071071111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55071071171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598460 + ... + 684321.

It is an arithmetic number, because the mean of its divisors is an integer number (7868584788).

Almost surely, 2^55071071111 is an apocalyptic number.

55071071111 is a deficient number, since it is larger than the sum of its proper divisors (7877607193).

55071071111 is a wasteful number, since it uses less digits than its factorization.

55071071111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288921.

The product of its (nonzero) digits is 1225, while the sum is 29.

Adding to 55071071111 its reverse (11117017055), we get a palindrome (66188088166).

The spelling of 55071071111 in words is "fifty-five billion, seventy-one million, seventy-one thousand, one hundred eleven".