55898624693 has 2 divisors, whose sum is σ = 55898624694. Its totient is φ = 55898624692.

The previous prime is 55898624669. The next prime is 55898624699. The reversal of 55898624693 is 39642689855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44170167889 + 11728456804 = 210167^2 + 108298^2 .

It is a cyclic number.

It is not a de Polignac number, because 55898624693 - 2⁸ = 55898624437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55898624699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27949312346 + 27949312347.

It is an arithmetic number, because the mean of its divisors is an integer number (27949312347).

Almost surely, 2^55898624693 is an apocalyptic number.

It is an amenable number.

55898624693 is a deficient number, since it is larger than the sum of its proper divisors (1).

55898624693 is an equidigital number, since it uses as much as digits as its factorization.

55898624693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111974400, while the sum is 65.

The spelling of 55898624693 in words is "fifty-five billion, eight hundred ninety-eight million, six hundred twenty-four thousand, six hundred ninety-three".