55505050005439 has 2 divisors, whose sum is σ = 55505050005440. Its totient is φ = 55505050005438.

The previous prime is 55505050005337. The next prime is 55505050005473. The reversal of 55505050005439 is 93450005050555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55505050005439 - 2⁹ = 55505050004927 is a prime.

It is a super-2 number, since 2×55505050005439² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55505050005499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752525002719 + 27752525002720.

It is an arithmetic number, because the mean of its divisors is an integer number (27752525002720).

Almost surely, 2^{55505050005439} is an apocalyptic number.

55505050005439 is a deficient number, since it is larger than the sum of its proper divisors (1).

55505050005439 is an equidigital number, since it uses as much as digits as its factorization.

55505050005439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1687500, while the sum is 46.

The spelling of 55505050005439 in words is "fifty-five trillion, five hundred five billion, fifty million, five thousand, four hundred thirty-nine".