91055373 has 4 divisors (see below), whose sum is σ = 121407168. Its totient is φ = 60703580.

The previous prime is 91055347. The next prime is 91055407. The reversal of 91055373 is 37355019.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91055373 - 2¹⁴ = 91038989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91055303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15175893 + ... + 15175898.

It is an arithmetic number, because the mean of its divisors is an integer number (30351792).

Almost surely, 2^91055373 is an apocalyptic number.

It is an amenable number.

91055373 is a deficient number, since it is larger than the sum of its proper divisors (30351795).

91055373 is a wasteful number, since it uses less digits than its factorization.

91055373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30351794.

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

The square root of 91055373 is about 9542.2939066034. The cubic root of 91055373 is about 449.8853584508.

The spelling of 91055373 in words is "ninety-one million, fifty-five thousand, three hundred seventy-three".