55318465522357 has 2 divisors, whose sum is σ = 55318465522358. Its totient is φ = 55318465522356.

The previous prime is 55318465522303. The next prime is 55318465522403. The reversal of 55318465522357 is 75322556481355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47889084997636 + 7429380524721 = 6920194^2 + 2725689^2 .

It is a cyclic number.

It is not a de Polignac number, because 55318465522357 - 2¹⁵ = 55318465489589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55318465522295 and 55318465522304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55318465522057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27659232761178 + 27659232761179.

It is an arithmetic number, because the mean of its divisors is an integer number (27659232761179).

Almost surely, 2^{55318465522357} is an apocalyptic number.

It is an amenable number.

55318465522357 is a deficient number, since it is larger than the sum of its proper divisors (1).

55318465522357 is an equidigital number, since it uses as much as digits as its factorization.

55318465522357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200000, while the sum is 61.

The spelling of 55318465522357 in words is "fifty-five trillion, three hundred eighteen billion, four hundred sixty-five million, five hundred twenty-two thousand, three hundred fifty-seven".