56551308212171 has 8 divisors (see below), whose sum is σ = 56557131101184. Its totient is φ = 56545485633000.

The previous prime is 56551308212159. The next prime is 56551308212197. The reversal of 56551308212171 is 17121280315565.

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 56551308212171 - 2⁶ = 56551308212107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56551308212111) 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, 542213990 + ... + 542318276.

It is an arithmetic number, because the mean of its divisors is an integer number (7069641387648).

Almost surely, 2^{56551308212171} is an apocalyptic number.

56551308212171 is a deficient number, since it is larger than the sum of its proper divisors (5822889013).

56551308212171 is a wasteful number, since it uses less digits than its factorization.

56551308212171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154921.

The product of its (nonzero) digits is 504000, while the sum is 47.

The spelling of 56551308212171 in words is "fifty-six trillion, five hundred fifty-one billion, three hundred eight million, two hundred twelve thousand, one hundred seventy-one".