90255338959 has 2 divisors, whose sum is σ = 90255338960. Its totient is φ = 90255338958.

The previous prime is 90255338951. The next prime is 90255338963. The reversal of 90255338959 is 95983355209.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90255338959 - 2³ = 90255338951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90255338951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45127669479 + 45127669480.

It is an arithmetic number, because the mean of its divisors is an integer number (45127669480).

Almost surely, 2^90255338959 is an apocalyptic number.

90255338959 is a deficient number, since it is larger than the sum of its proper divisors (1).

90255338959 is an equidigital number, since it uses as much as digits as its factorization.

90255338959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122000, while the sum is 58.

The spelling of 90255338959 in words is "ninety billion, two hundred fifty-five million, three hundred thirty-eight thousand, nine hundred fifty-nine".