91537053 has 8 divisors (see below), whose sum is σ = 122148288. Its totient is φ = 60975264.

The previous prime is 91537049. The next prime is 91537081. The reversal of 91537053 is 35073519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91537053 - 2² = 91537049 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91537013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7800 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (15268536).

Almost surely, 2^91537053 is an apocalyptic number.

It is an amenable number.

91537053 is a deficient number, since it is larger than the sum of its proper divisors (30611235).

91537053 is a wasteful number, since it uses less digits than its factorization.

91537053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24723.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 91537053 is about 9567.4998301542. The cubic root of 91537053 is about 450.6772567503.

It can be divided in two parts, 915 and 37053, that multiplied together give a triangular number (33903495 = T₈₂₃₄).

The spelling of 91537053 in words is "ninety-one million, five hundred thirty-seven thousand, fifty-three".