91582204252 has 48 divisors (see below), whose sum is σ = 200537261568. Its totient is φ = 35552531520.

The previous prime is 91582204187. The next prime is 91582204253. The reversal of 91582204252 is 25240228519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91582204253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451408 + ... + 622039.

It is an arithmetic number, because the mean of its divisors is an integer number (4177859616).

Almost surely, 2^91582204252 is an apocalyptic number.

It is an amenable number.

91582204252 is an abundant number, since it is smaller than the sum of its proper divisors (108955057316).

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

91582204252 is a wasteful number, since it uses less digits than its factorization.

91582204252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073746 (or 1073744 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 91582204252 in words is "ninety-one billion, five hundred eighty-two million, two hundred four thousand, two hundred fifty-two".