91059552 has 180 divisors, whose sum is σ = 288606780. Its totient is φ = 28086912.

The previous prime is 91059517. The next prime is 91059557. The reversal of 91059552 is 25595019.

91059552 is a `hidden beast` number, since 9 + 10 + 595 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91059557) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2117643 + ... + 2117685.

It is an arithmetic number, because the mean of its divisors is an integer number (1603371).

Almost surely, 2^91059552 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 91059552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144303390).

91059552 is an abundant number, since it is smaller than the sum of its proper divisors (197547228).

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

91059552 is a wasteful number, since it uses less digits than its factorization.

91059552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 36.

The square root of 91059552 is about 9542.5128765960. The cubic root of 91059552 is about 449.8922408642.

The spelling of 91059552 in words is "ninety-one million, fifty-nine thousand, five hundred fifty-two".