91945256 has 96 divisors (see below), whose sum is σ = 204825600. Its totient is φ = 38413440.

The previous prime is 91945253. The next prime is 91945267. The reversal of 91945256 is 65254919.

Its product of digits (97200) is a multiple of the sum of its prime divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91945253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1163825 + ... + 1163903.

It is an arithmetic number, because the mean of its divisors is an integer number (2133600).

Almost surely, 2^91945256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91945256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102412800).

91945256 is an abundant number, since it is smaller than the sum of its proper divisors (112880344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91945256 is a wasteful number, since it uses less digits than its factorization.

91945256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 144 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 91945256 is about 9588.8088937052. The cubic root of 91945256 is about 451.3461844829.

The spelling of 91945256 in words is "ninety-one million, nine hundred forty-five thousand, two hundred fifty-six".