55291516771 has 8 divisors (see below), whose sum is σ = 58850475264. Its totient is φ = 51766615680.

The previous prime is 55291516723. The next prime is 55291516801. The reversal of 55291516771 is 17761519255.

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

It is not a de Polignac number, because 55291516771 - 2²⁹ = 54754645859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55291516171) 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, 8511000 + ... + 8517493.

It is an arithmetic number, because the mean of its divisors is an integer number (7356309408).

Almost surely, 2^55291516771 is an apocalyptic number.

55291516771 is a deficient number, since it is larger than the sum of its proper divisors (3558958493).

55291516771 is a wasteful number, since it uses less digits than its factorization.

55291516771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17028701.

The product of its digits is 661500, while the sum is 49.

The spelling of 55291516771 in words is "fifty-five billion, two hundred ninety-one million, five hundred sixteen thousand, seven hundred seventy-one".