55111101001 has 8 divisors (see below), whose sum is σ = 60453364608. Its totient is φ = 49824198000.

The previous prime is 55111100987. The next prime is 55111101011. The reversal of 55111101001 is 10010111155.

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

It is a cyclic number.

It is not a de Polignac number, because 55111101001 - 2¹⁷ = 55110969929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55111101011) 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, 13838065 + ... + 13842046.

It is an arithmetic number, because the mean of its divisors is an integer number (7556670576).

Almost surely, 2^55111101001 is an apocalyptic number.

It is an amenable number.

55111101001 is a deficient number, since it is larger than the sum of its proper divisors (5342263607).

55111101001 is a wasteful number, since it uses less digits than its factorization.

55111101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27680303.

The product of its (nonzero) digits is 25, while the sum is 16.

Adding to 55111101001 its reverse (10010111155), we get a palindrome (65121212156).

The spelling of 55111101001 in words is "fifty-five billion, one hundred eleven million, one hundred one thousand, one".