55117543473 has 8 divisors (see below), whose sum is σ = 81655620000. Its totient is φ = 36745028964.

The previous prime is 55117543471. The next prime is 55117543483. The reversal of 55117543473 is 37434571155.

55117543473 is a `hidden beast` number, since 5 + 5 + 1 + 175 + 4 + 3 + 473 = 666.

It is not a de Polignac number, because 55117543473 - 2¹ = 55117543471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55117543471) by changing a digit.

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, 1020695223 + ... + 1020695276.

It is an arithmetic number, because the mean of its divisors is an integer number (10206952500).

Almost surely, 2^55117543473 is an apocalyptic number.

It is an amenable number.

55117543473 is a deficient number, since it is larger than the sum of its proper divisors (26538076527).

55117543473 is a wasteful number, since it uses less digits than its factorization.

55117543473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041390508 (or 2041390502 counting only the distinct ones).

The product of its digits is 882000, while the sum is 45.

The spelling of 55117543473 in words is "fifty-five billion, one hundred seventeen million, five hundred forty-three thousand, four hundred seventy-three".