91065053 has 2 divisors, whose sum is σ = 91065054. Its totient is φ = 91065052.

The previous prime is 91065001. The next prime is 91065061. The reversal of 91065053 is 35056019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58323769 + 32741284 = 7637^2 + 5722^2 .

It is an emirp because it is prime and its reverse (35056019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91065053 - 2⁶ = 91064989 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91065083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45532526 + 45532527.

It is an arithmetic number, because the mean of its divisors is an integer number (45532527).

Almost surely, 2^91065053 is an apocalyptic number.

It is an amenable number.

91065053 is a deficient number, since it is larger than the sum of its proper divisors (1).

91065053 is an equidigital number, since it uses as much as digits as its factorization.

91065053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 91065053 is about 9542.8011086892. The cubic root of 91065053 is about 449.9013001642.

The spelling of 91065053 in words is "ninety-one million, sixty-five thousand, fifty-three".