91473053 has 12 divisors (see below), whose sum is σ = 106597980. Its totient is φ = 78265152.

The previous prime is 91472999. The next prime is 91473059. The reversal of 91473053 is 35037419.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 77915929 = 3682^2 + 8827^2 .

It is not a de Polignac number, because 91473053 - 2¹⁴ = 91456669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91473059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33425 + ... + 36057.

It is an arithmetic number, because the mean of its divisors is an integer number (8883165).

Almost surely, 2^91473053 is an apocalyptic number.

It is an amenable number.

91473053 is a deficient number, since it is larger than the sum of its proper divisors (15124927).

91473053 is a wasteful number, since it uses less digits than its factorization.

91473053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356 (or 3349 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 91473053 is about 9564.1545888803. The cubic root of 91473053 is about 450.5721988594.

The spelling of 91473053 in words is "ninety-one million, four hundred seventy-three thousand, fifty-three".