91554266 has 4 divisors (see below), whose sum is σ = 137331402. Its totient is φ = 45777132.

The previous prime is 91554263. The next prime is 91554277. The reversal of 91554266 is 66245519.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66245519 = 107 ⋅619117.

It can be written as a sum of positive squares in only one way, i.e., 83265625 + 8288641 = 9125^2 + 2879^2 .

It is not an unprimeable number, because it can be changed into a prime (91554263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22888565 + ... + 22888568.

Almost surely, 2^91554266 is an apocalyptic number.

91554266 is a deficient number, since it is larger than the sum of its proper divisors (45777136).

91554266 is a wasteful number, since it uses less digits than its factorization.

91554266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45777135.

The product of its digits is 64800, while the sum is 38.

The square root of 91554266 is about 9568.3993436729. The cubic root of 91554266 is about 450.7055040417.

The spelling of 91554266 in words is "ninety-one million, five hundred fifty-four thousand, two hundred sixty-six".