91150552 has 16 divisors (see below), whose sum is σ = 173459160. Its totient is φ = 44894784.

The previous prime is 91150547. The next prime is 91150561. The reversal of 91150552 is 25505119.

It is a self number, because there is not a number n which added to its sum of digits gives 91150552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84493 + ... + 85564.

Almost surely, 2^91150552 is an apocalyptic number.

It is an amenable number.

91150552 is a deficient number, since it is larger than the sum of its proper divisors (82308608).

91150552 is a wasteful number, since it uses less digits than its factorization.

91150552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170130 (or 170126 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 91150552 is about 9547.2798220226. The cubic root of 91150552 is about 450.0420569746.

The spelling of 91150552 in words is "ninety-one million, one hundred fifty thousand, five hundred fifty-two".