55179213197 has 2 divisors, whose sum is σ = 55179213198. Its totient is φ = 55179213196.

The previous prime is 55179213161. The next prime is 55179213233. The reversal of 55179213197 is 79131297155.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55179213161) and next prime (55179213233).

It can be written as a sum of positive squares in only one way, i.e., 31724596996 + 23454616201 = 178114^2 + 153149^2 .

It is a cyclic number.

It is not a de Polignac number, because 55179213197 - 2¹⁰ = 55179212173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55179213697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27589606598 + 27589606599.

It is an arithmetic number, because the mean of its divisors is an integer number (27589606599).

Almost surely, 2^55179213197 is an apocalyptic number.

It is an amenable number.

55179213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

55179213197 is an equidigital number, since it uses as much as digits as its factorization.

55179213197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 595350, while the sum is 50.

The spelling of 55179213197 in words is "fifty-five billion, one hundred seventy-nine million, two hundred thirteen thousand, one hundred ninety-seven".