55149894155 has 8 divisors (see below), whose sum is σ = 69057258912. Its totient is φ = 42201658048.

The previous prime is 55149894139. The next prime is 55149894169.

55149894155 is nontrivially palindromic in base 10.

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 55149894155 - 2⁴ = 55149894139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55149894155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239782034 + ... + 239782263.

It is an arithmetic number, because the mean of its divisors is an integer number (8632157364).

Almost surely, 2^55149894155 is an apocalyptic number.

55149894155 is a deficient number, since it is larger than the sum of its proper divisors (13907364757).

55149894155 is a wasteful number, since it uses less digits than its factorization.

55149894155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479564325.

The product of its digits is 6480000, while the sum is 56.

The spelling of 55149894155 in words is "fifty-five billion, one hundred forty-nine million, eight hundred ninety-four thousand, one hundred fifty-five".