90005405519 has 2 divisors, whose sum is σ = 90005405520. Its totient is φ = 90005405518.

The previous prime is 90005405491. The next prime is 90005405521. The reversal of 90005405519 is 91550450009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90005405519 - 2⁸ = 90005405263 is a prime.

It is a super-2 number, since 2×90005405519² (a number of 23 digits) contains 22 as substring.

Together with 90005405521, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90005405719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45002702759 + 45002702760.

It is an arithmetic number, because the mean of its divisors is an integer number (45002702760).

Almost surely, 2^90005405519 is an apocalyptic number.

90005405519 is a deficient number, since it is larger than the sum of its proper divisors (1).

90005405519 is an equidigital number, since it uses as much as digits as its factorization.

90005405519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 90005405519 in words is "ninety billion, five million, four hundred five thousand, five hundred nineteen".