91017552 has 20 divisors (see below), whose sum is σ = 235128800. Its totient is φ = 30339168.

The previous prime is 91017547. The next prime is 91017587. The reversal of 91017552 is 25571019.

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, 948052 + ... + 948147.

It is an arithmetic number, because the mean of its divisors is an integer number (11756440).

Almost surely, 2^91017552 is an apocalyptic number.

It is an amenable number.

91017552 is an abundant number, since it is smaller than the sum of its proper divisors (144111248).

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

91017552 is a wasteful number, since it uses less digits than its factorization.

91017552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896210 (or 1896204 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 91017552 is about 9540.3119445855. The cubic root of 91017552 is about 449.8230613015.

It can be divided in two parts, 9101 and 7552, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 91017552 in words is "ninety-one million, seventeen thousand, five hundred fifty-two".