91232053 has 16 divisors (see below), whose sum is σ = 109324800. Its totient is φ = 75152880.

The previous prime is 91232041. The next prime is 91232059. The reversal of 91232053 is 35023219.

It is a happy number.

It is not a de Polignac number, because 91232053 - 2¹³ = 91223861 is a prime.

It is a super-3 number, since 3×91232053³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91232059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4683 + ... + 14296.

It is an arithmetic number, because the mean of its divisors is an integer number (6832800).

Almost surely, 2^91232053 is an apocalyptic number.

It is an amenable number.

91232053 is a deficient number, since it is larger than the sum of its proper divisors (18092747).

91232053 is a wasteful number, since it uses less digits than its factorization.

91232053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19032.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 91232053 is about 9551.5471521634. The cubic root of 91232053 is about 450.1761499681.

The spelling of 91232053 in words is "ninety-one million, two hundred thirty-two thousand, fifty-three".