55933816607869 has 2 divisors, whose sum is σ = 55933816607870. Its totient is φ = 55933816607868.

The previous prime is 55933816607827. The next prime is 55933816607873. The reversal of 55933816607869 is 96870661833955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36290527802244 + 19643288805625 = 6024162^2 + 4432075^2 .

It is a cyclic number.

It is not a de Polignac number, because 55933816607869 - 2²⁷ = 55933682390141 is a prime.

It is a super-2 number, since 2×55933816607869² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55933816607795 and 55933816607804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55933816607969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27966908303934 + 27966908303935.

It is an arithmetic number, because the mean of its divisors is an integer number (27966908303935).

Almost surely, 2^{55933816607869} is an apocalyptic number.

It is an amenable number.

55933816607869 is a deficient number, since it is larger than the sum of its proper divisors (1).

55933816607869 is an equidigital number, since it uses as much as digits as its factorization.

55933816607869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1763596800, while the sum is 76.

The spelling of 55933816607869 in words is "fifty-five trillion, nine hundred thirty-three billion, eight hundred sixteen million, six hundred seven thousand, eight hundred sixty-nine".