55605171619 has 8 divisors (see below), whose sum is σ = 57975528960. Its totient is φ = 53265010176.

The previous prime is 55605171617. The next prime is 55605171631. The reversal of 55605171619 is 91617150655.

It is a happy number.

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 55605171619 - 2¹ = 55605171617 is a prime.

It is a super-2 number, since 2×55605171619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55605171617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7545214 + ... + 7552579.

It is an arithmetic number, because the mean of its divisors is an integer number (7246941120).

Almost surely, 2^55605171619 is an apocalyptic number.

55605171619 is a deficient number, since it is larger than the sum of its proper divisors (2370357341).

55605171619 is a wasteful number, since it uses less digits than its factorization.

55605171619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15097949.

The product of its (nonzero) digits is 283500, while the sum is 46.

The spelling of 55605171619 in words is "fifty-five billion, six hundred five million, one hundred seventy-one thousand, six hundred nineteen".