55585177205 has 16 divisors (see below), whose sum is σ = 69859183104. Its totient is φ = 42377765760.

The previous prime is 55585177183. The next prime is 55585177211. The reversal of 55585177205 is 50277158555.

It is not a de Polignac number, because 55585177205 - 2¹⁶ = 55585111669 is a prime.

It is a super-2 number, since 2×55585177205² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860624 + ... + 922953.

It is an arithmetic number, because the mean of its divisors is an integer number (4366198944).

Almost surely, 2^55585177205 is an apocalyptic number.

It is an amenable number.

55585177205 is a deficient number, since it is larger than the sum of its proper divisors (14274005899).

55585177205 is a wasteful number, since it uses less digits than its factorization.

55585177205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783876.

The product of its (nonzero) digits is 2450000, while the sum is 50.

The spelling of 55585177205 in words is "fifty-five billion, five hundred eighty-five million, one hundred seventy-seven thousand, two hundred five".