91050552823 has 2 divisors, whose sum is σ = 91050552824. Its totient is φ = 91050552822.

The previous prime is 91050552781. The next prime is 91050552881. The reversal of 91050552823 is 32825505019.

It is a weak prime.

It is an emirp because it is prime and its reverse (32825505019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91050552823 - 2⁹ = 91050552311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91050952823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45525276411 + 45525276412.

It is an arithmetic number, because the mean of its divisors is an integer number (45525276412).

Almost surely, 2^91050552823 is an apocalyptic number.

91050552823 is a deficient number, since it is larger than the sum of its proper divisors (1).

91050552823 is an equidigital number, since it uses as much as digits as its factorization.

91050552823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 91050552823 in words is "ninety-one billion, fifty million, five hundred fifty-two thousand, eight hundred twenty-three".