55212186311 has 4 divisors (see below), whose sum is σ = 55296738552. Its totient is φ = 55127634072.

The previous prime is 55212186299. The next prime is 55212186353. The reversal of 55212186311 is 11368121255.

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 55212186311 - 2¹⁴ = 55212169927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55212186011) 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, 42275141 + ... + 42276446.

It is an arithmetic number, because the mean of its divisors is an integer number (13824184638).

Almost surely, 2^55212186311 is an apocalyptic number.

55212186311 is a deficient number, since it is larger than the sum of its proper divisors (84552241).

55212186311 is an equidigital number, since it uses as much as digits as its factorization.

55212186311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84552240.

The product of its digits is 14400, while the sum is 35.

The spelling of 55212186311 in words is "fifty-five billion, two hundred twelve million, one hundred eighty-six thousand, three hundred eleven".