55131314220149 has 2 divisors, whose sum is σ = 55131314220150. Its totient is φ = 55131314220148.

The previous prime is 55131314220127. The next prime is 55131314220223. The reversal of 55131314220149 is 94102241313155.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47510788339249 + 7620525880900 = 6892807^2 + 2760530^2 .

It is a cyclic number.

It is not a de Polignac number, because 55131314220149 - 2¹² = 55131314216053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55131314280149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27565657110074 + 27565657110075.

It is an arithmetic number, because the mean of its divisors is an integer number (27565657110075).

Almost surely, 2^{55131314220149} is an apocalyptic number.

It is an amenable number.

55131314220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

55131314220149 is an equidigital number, since it uses as much as digits as its factorization.

55131314220149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 55131314220149 in words is "fifty-five trillion, one hundred thirty-one billion, three hundred fourteen million, two hundred twenty thousand, one hundred forty-nine".