55550055055519 has 2 divisors, whose sum is σ = 55550055055520. Its totient is φ = 55550055055518.

The previous prime is 55550055055459. The next prime is 55550055055531. The reversal of 55550055055519 is 91555055005555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55550055055519 - 2²⁵ = 55550021501087 is a prime.

It is a super-2 number, since 2×55550055055519² (a number of 28 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 55550055055519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55550055055549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775027527759 + 27775027527760.

It is an arithmetic number, because the mean of its divisors is an integer number (27775027527760).

Almost surely, 2^{55550055055519} is an apocalyptic number.

55550055055519 is a deficient number, since it is larger than the sum of its proper divisors (1).

55550055055519 is an equidigital number, since it uses as much as digits as its factorization.

55550055055519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17578125, while the sum is 55.

The spelling of 55550055055519 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, fifty-five thousand, five hundred nineteen".