88505587217 has 2 divisors, whose sum is σ = 88505587218. Its totient is φ = 88505587216.

The previous prime is 88505587201. The next prime is 88505587237. The reversal of 88505587217 is 71278550588.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81097370176 + 7408217041 = 284776^2 + 86071^2 .

It is a cyclic number.

It is not a de Polignac number, because 88505587217 - 2⁴ = 88505587201 is a prime.

It is not a weakly prime, because it can be changed into another prime (88505587237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44252793608 + 44252793609.

It is an arithmetic number, because the mean of its divisors is an integer number (44252793609).

Almost surely, 2^88505587217 is an apocalyptic number.

It is an amenable number.

88505587217 is a deficient number, since it is larger than the sum of its proper divisors (1).

88505587217 is an equidigital number, since it uses as much as digits as its factorization.

88505587217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272000, while the sum is 56.

The spelling of 88505587217 in words is "eighty-eight billion, five hundred five million, five hundred eighty-seven thousand, two hundred seventeen".