55666501059 has 8 divisors (see below), whose sum is σ = 79931386192. Its totient is φ = 34256308320.

The previous prime is 55666501049. The next prime is 55666501061. The reversal of 55666501059 is 95010566655.

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

It is not a de Polignac number, because 55666501059 - 2⁷ = 55666500931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55666500999 and 55666501017.

It is not an unprimeable number, because it can be changed into a prime (55666501049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713673052 + ... + 713673129.

It is an arithmetic number, because the mean of its divisors is an integer number (9991423274).

Almost surely, 2^55666501059 is an apocalyptic number.

55666501059 is a deficient number, since it is larger than the sum of its proper divisors (24264885133).

55666501059 is a wasteful number, since it uses less digits than its factorization.

55666501059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427346197.

The product of its (nonzero) digits is 1215000, while the sum is 48.

The spelling of 55666501059 in words is "fifty-five billion, six hundred sixty-six million, five hundred one thousand, fifty-nine".