55500500071 has 2 divisors, whose sum is σ = 55500500072. Its totient is φ = 55500500070.

The previous prime is 55500500017. The next prime is 55500500087. The reversal of 55500500071 is 17000500555.

Together with previous prime (55500500017) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55500500071 - 2¹⁵ = 55500467303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55500500771) 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, 27750250035 + 27750250036.

It is an arithmetic number, because the mean of its divisors is an integer number (27750250036).

Almost surely, 2^55500500071 is an apocalyptic number.

55500500071 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500500071 is an equidigital number, since it uses as much as digits as its factorization.

55500500071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4375, while the sum is 28.

The spelling of 55500500071 in words is "fifty-five billion, five hundred million, five hundred thousand, seventy-one".