55252477472197 has 2 divisors, whose sum is σ = 55252477472198. Its totient is φ = 55252477472196.

The previous prime is 55252477472161. The next prime is 55252477472207. The reversal of 55252477472197 is 79127477425255.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43813464442276 + 11439013029921 = 6619174^2 + 3382161^2 .

It is a cyclic number.

It is not a de Polignac number, because 55252477472197 - 2³⁹ = 54702721658309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55252477472117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27626238736098 + 27626238736099.

It is an arithmetic number, because the mean of its divisors is an integer number (27626238736099).

Almost surely, 2^{55252477472197} is an apocalyptic number.

It is an amenable number.

55252477472197 is a deficient number, since it is larger than the sum of its proper divisors (1).

55252477472197 is an equidigital number, since it uses as much as digits as its factorization.

55252477472197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345744000, while the sum is 67.

The spelling of 55252477472197 in words is "fifty-five trillion, two hundred fifty-two billion, four hundred seventy-seven million, four hundred seventy-two thousand, one hundred ninety-seven".