91050552701 has 2 divisors, whose sum is σ = 91050552702. Its totient is φ = 91050552700.

The previous prime is 91050552689. The next prime is 91050552727. The reversal of 91050552701 is 10725505019.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57451296100 + 33599256601 = 239690^2 + 183301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91050552701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91050552731) 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, 45525276350 + 45525276351.

It is an arithmetic number, because the mean of its divisors is an integer number (45525276351).

Almost surely, 2^91050552701 is an apocalyptic number.

It is an amenable number.

91050552701 is a deficient number, since it is larger than the sum of its proper divisors (1).

91050552701 is an equidigital number, since it uses as much as digits as its factorization.

91050552701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 35.

The spelling of 91050552701 in words is "ninety-one billion, fifty million, five hundred fifty-two thousand, seven hundred one".