91056452 has 6 divisors (see below), whose sum is σ = 159348798. Its totient is φ = 45528224.

The previous prime is 91056443. The next prime is 91056457. The reversal of 91056452 is 25465019.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87909376 + 3147076 = 9376^2 + 1774^2 .

It is not an unprimeable number, because it can be changed into a prime (91056457) 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, 11382053 + ... + 11382060.

It is an arithmetic number, because the mean of its divisors is an integer number (26558133).

Almost surely, 2^91056452 is an apocalyptic number.

It is an amenable number.

91056452 is a deficient number, since it is larger than the sum of its proper divisors (68292346).

91056452 is a wasteful number, since it uses less digits than its factorization.

91056452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22764117 (or 22764115 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 91056452 is about 9542.3504442040. The cubic root of 91056452 is about 449.8871354808.

The spelling of 91056452 in words is "ninety-one million, fifty-six thousand, four hundred fifty-two".