90501353497 has 2 divisors, whose sum is σ = 90501353498. Its totient is φ = 90501353496.

The previous prime is 90501353491. The next prime is 90501353513. The reversal of 90501353497 is 79435310509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71141692176 + 19359661321 = 266724^2 + 139139^2 .

It is a cyclic number.

It is not a de Polignac number, because 90501353497 - 2¹⁵ = 90501320729 is a prime.

It is not a weakly prime, because it can be changed into another prime (90501353491) 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 as a sum of consecutive naturals, namely, 45250676748 + 45250676749.

It is an arithmetic number, because the mean of its divisors is an integer number (45250676749).

Almost surely, 2^90501353497 is an apocalyptic number.

It is an amenable number.

90501353497 is a deficient number, since it is larger than the sum of its proper divisors (1).

90501353497 is an equidigital number, since it uses as much as digits as its factorization.

90501353497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 510300, while the sum is 46.

The spelling of 90501353497 in words is "ninety billion, five hundred one million, three hundred fifty-three thousand, four hundred ninety-seven".