55005005500019 has 2 divisors, whose sum is σ = 55005005500020. Its totient is φ = 55005005500018.

The previous prime is 55005005499869. The next prime is 55005005500021. The reversal of 55005005500019 is 91000550050055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55005005500019 is a prime.

It is a super-2 number, since 2×55005005500019² (a number of 28 digits) contains 22 as substring.

Together with 55005005500021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55005005506019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502502750009 + 27502502750010.

It is an arithmetic number, because the mean of its divisors is an integer number (27502502750010).

Almost surely, 2^{55005005500019} is an apocalyptic number.

55005005500019 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005005500019 is an equidigital number, since it uses as much as digits as its factorization.

55005005500019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28125, while the sum is 35.

The spelling of 55005005500019 in words is "fifty-five trillion, five billion, five million, five hundred thousand, nineteen".