55359909265993 has 2 divisors, whose sum is σ = 55359909265994. Its totient is φ = 55359909265992.

The previous prime is 55359909265883. The next prime is 55359909266063. The reversal of 55359909265993 is 39956290995355.

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., 40117693825609 + 15242215440384 = 6333853^2 + 3904128^2 .

It is a cyclic number.

It is not a de Polignac number, because 55359909265993 - 2³³ = 55351319331401 is a prime.

It is not a weakly prime, because it can be changed into another prime (55359909565993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27679954632996 + 27679954632997.

It is an arithmetic number, because the mean of its divisors is an integer number (27679954632997).

Almost surely, 2^{55359909265993} is an apocalyptic number.

It is an amenable number.

55359909265993 is a deficient number, since it is larger than the sum of its proper divisors (1).

55359909265993 is an equidigital number, since it uses as much as digits as its factorization.

55359909265993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3985807500, while the sum is 79.

The spelling of 55359909265993 in words is "fifty-five trillion, three hundred fifty-nine billion, nine hundred nine million, two hundred sixty-five thousand, nine hundred ninety-three".