55319896369 has 2 divisors, whose sum is σ = 55319896370. Its totient is φ = 55319896368.

The previous prime is 55319896363. The next prime is 55319896399. The reversal of 55319896369 is 96369891355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54805151025 + 514745344 = 234105^2 + 22688^2 .

It is a cyclic number.

It is not a de Polignac number, because 55319896369 - 2³ = 55319896361 is a prime.

It is a super-2 number, since 2×55319896369² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55319896369.

It is not a weakly prime, because it can be changed into another prime (55319896361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27659948184 + 27659948185.

It is an arithmetic number, because the mean of its divisors is an integer number (27659948185).

Almost surely, 2^55319896369 is an apocalyptic number.

It is an amenable number.

55319896369 is a deficient number, since it is larger than the sum of its proper divisors (1).

55319896369 is an equidigital number, since it uses as much as digits as its factorization.

55319896369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47239200, while the sum is 64.

The spelling of 55319896369 in words is "fifty-five billion, three hundred nineteen million, eight hundred ninety-six thousand, three hundred sixty-nine".