55015155111 has 8 divisors (see below), whose sum is σ = 83832617344. Its totient is φ = 31437231480.

The previous prime is 55015155109. The next prime is 55015155133. The reversal of 55015155111 is 11155151055.

It is a happy number.

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

It is not a de Polignac number, because 55015155111 - 2¹ = 55015155109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55015155161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309884625 + ... + 1309884666.

It is an arithmetic number, because the mean of its divisors is an integer number (10479077168).

Almost surely, 2^55015155111 is an apocalyptic number.

55015155111 is a deficient number, since it is larger than the sum of its proper divisors (28817462233).

55015155111 is a wasteful number, since it uses less digits than its factorization.

55015155111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619769301.

The product of its (nonzero) digits is 3125, while the sum is 30.

The spelling of 55015155111 in words is "fifty-five billion, fifteen million, one hundred fifty-five thousand, one hundred eleven".