55000556617 has 8 divisors (see below), whose sum is σ = 55779233472. Its totient is φ = 54221991600.

The previous prime is 55000556599. The next prime is 55000556683. The reversal of 55000556617 is 71665500055.

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 55000556617 - 2³¹ = 52853072969 is a prime.

It is a super-2 number, since 2×55000556617² (a number of 22 digits) contains 22 as substring.

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 55000556617.

It is not an unprimeable number, because it can be changed into a prime (55000556417) 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, 1807267 + ... + 1837447.

It is an arithmetic number, because the mean of its divisors is an integer number (6972404184).

Almost surely, 2^55000556617 is an apocalyptic number.

It is an amenable number.

55000556617 is a deficient number, since it is larger than the sum of its proper divisors (778676855).

55000556617 is a wasteful number, since it uses less digits than its factorization.

55000556617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55919.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 55000556617 in words is "fifty-five billion, five hundred fifty-six thousand, six hundred seventeen".