55585671309 has 32 divisors (see below), whose sum is σ = 95438868480. Its totient is φ = 31315863600.

The previous prime is 55585671263. The next prime is 55585671311. The reversal of 55585671309 is 90317658555.

55585671309 is a `hidden beast` number, since 5 + 558 + 56 + 7 + 1 + 30 + 9 = 666.

It is not a de Polignac number, because 55585671309 - 2⁷ = 55585671181 is a prime.

It is a super-3 number, since 3×55585671309³ (a number of 33 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55585671319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2057737 + ... + 2084574.

It is an arithmetic number, because the mean of its divisors is an integer number (2982464640).

Almost surely, 2^55585671309 is an apocalyptic number.

It is an amenable number.

55585671309 is a deficient number, since it is larger than the sum of its proper divisors (39853197171).

55585671309 is a wasteful number, since it uses less digits than its factorization.

55585671309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142398 (or 4142392 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 54.

The spelling of 55585671309 in words is "fifty-five billion, five hundred eighty-five million, six hundred seventy-one thousand, three hundred nine".