91466563 has 2 divisors, whose sum is σ = 91466564. Its totient is φ = 91466562.

The previous prime is 91466537. The next prime is 91466593. The reversal of 91466563 is 36566419.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91466563 - 2¹³ = 91458371 is a prime.

It is a super-2 number, since 2×91466563² = 16732264294065938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91466593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45733281 + 45733282.

It is an arithmetic number, because the mean of its divisors is an integer number (45733282).

Almost surely, 2^91466563 is an apocalyptic number.

91466563 is a deficient number, since it is larger than the sum of its proper divisors (1).

91466563 is an equidigital number, since it uses as much as digits as its factorization.

91466563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 91466563 is about 9563.8152951633. The cubic root of 91466563 is about 450.5615425964.

It can be divided in two parts, 91466 and 563, that added together give a palindrome (92029).

The spelling of 91466563 in words is "ninety-one million, four hundred sixty-six thousand, five hundred sixty-three".