55945677171 has 4 divisors (see below), whose sum is σ = 74594236232. Its totient is φ = 37297118112.

The previous prime is 55945677167. The next prime is 55945677187. The reversal of 55945677171 is 17177654955.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55945677171 - 2² = 55945677167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55945677121) 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 3 ways as a sum of consecutive naturals, for example, 9324279526 + ... + 9324279531.

It is an arithmetic number, because the mean of its divisors is an integer number (18648559058).

Almost surely, 2^55945677171 is an apocalyptic number.

55945677171 is a deficient number, since it is larger than the sum of its proper divisors (18648559061).

55945677171 is a wasteful number, since it uses less digits than its factorization.

55945677171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18648559060.

The product of its digits is 9261000, while the sum is 57.

The spelling of 55945677171 in words is "fifty-five billion, nine hundred forty-five million, six hundred seventy-seven thousand, one hundred seventy-one".