55250255549971 has 2 divisors, whose sum is σ = 55250255549972. Its totient is φ = 55250255549970.

The previous prime is 55250255549959. The next prime is 55250255549989. The reversal of 55250255549971 is 17994555205255.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55250255549971 - 2¹⁵ = 55250255517203 is a prime.

It is not a weakly prime, because it can be changed into another prime (55250255544971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27625127774985 + 27625127774986.

It is an arithmetic number, because the mean of its divisors is an integer number (27625127774986).

Almost surely, 2^{55250255549971} is an apocalyptic number.

55250255549971 is a deficient number, since it is larger than the sum of its proper divisors (1).

55250255549971 is an equidigital number, since it uses as much as digits as its factorization.

55250255549971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141750000, while the sum is 64.

The spelling of 55250255549971 in words is "fifty-five trillion, two hundred fifty billion, two hundred fifty-five million, five hundred forty-nine thousand, nine hundred seventy-one".