91052266 has 4 divisors (see below), whose sum is σ = 136578402. Its totient is φ = 45526132.

The previous prime is 91052249. The next prime is 91052293. The reversal of 91052266 is 66225019.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 88906041 + 2146225 = 9429^2 + 1465^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22763065 + ... + 22763068.

Almost surely, 2^91052266 is an apocalyptic number.

91052266 is a deficient number, since it is larger than the sum of its proper divisors (45526136).

91052266 is a wasteful number, since it uses less digits than its factorization.

91052266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45526135.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 91052266 is about 9542.1311036896. The cubic root of 91052266 is about 449.8802413825.

The spelling of 91052266 in words is "ninety-one million, fifty-two thousand, two hundred sixty-six".