55179213211 has 4 divisors (see below), whose sum is σ = 56353239072. Its totient is φ = 54005187352.

The previous prime is 55179213197. The next prime is 55179213233. The reversal of 55179213211 is 11231297155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55179213211 - 2¹³ = 55179205019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55179210211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587012860 + ... + 587012953.

It is an arithmetic number, because the mean of its divisors is an integer number (14088309768).

Almost surely, 2^55179213211 is an apocalyptic number.

55179213211 is a deficient number, since it is larger than the sum of its proper divisors (1174025861).

55179213211 is a wasteful number, since it uses less digits than its factorization.

55179213211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174025860.

The product of its digits is 18900, while the sum is 37.

The spelling of 55179213211 in words is "fifty-five billion, one hundred seventy-nine million, two hundred thirteen thousand, two hundred eleven".