55115320423297 has 2 divisors, whose sum is σ = 55115320423298. Its totient is φ = 55115320423296.

The previous prime is 55115320423283. The next prime is 55115320423321. The reversal of 55115320423297 is 79232402351155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30410802130801 + 24704518292496 = 5514599^2 + 4970364^2 .

It is a cyclic number.

It is not a de Polignac number, because 55115320423297 - 2¹⁹ = 55115319899009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55115320423297.

It is not a weakly prime, because it can be changed into another prime (55115320423897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27557660211648 + 27557660211649.

It is an arithmetic number, because the mean of its divisors is an integer number (27557660211649).

Almost surely, 2^{55115320423297} is an apocalyptic number.

It is an amenable number.

55115320423297 is a deficient number, since it is larger than the sum of its proper divisors (1).

55115320423297 is an equidigital number, since it uses as much as digits as its factorization.

55115320423297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 55115320423297 in words is "fifty-five trillion, one hundred fifteen billion, three hundred twenty million, four hundred twenty-three thousand, two hundred ninety-seven".