5155545212197 has 2 divisors, whose sum is σ = 5155545212198. Its totient is φ = 5155545212196.

The previous prime is 5155545212189. The next prime is 5155545212243. The reversal of 5155545212197 is 7912125455515.

5155545212197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5155438172481 + 107039716 = 2270559^2 + 10346^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155545212197 - 2³ = 5155545212189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5155545212897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577772606098 + 2577772606099.

It is an arithmetic number, because the mean of its divisors is an integer number (2577772606099).

Almost surely, 2^{5155545212197} is an apocalyptic number.

It is an amenable number.

5155545212197 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155545212197 is an equidigital number, since it uses as much as digits as its factorization.

5155545212197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150000, while the sum is 52.

The spelling of 5155545212197 in words is "five trillion, one hundred fifty-five billion, five hundred forty-five million, two hundred twelve thousand, one hundred ninety-seven".