90582432524581 has 2 divisors, whose sum is σ = 90582432524582. Its totient is φ = 90582432524580.

The previous prime is 90582432524567. The next prime is 90582432524641. The reversal of 90582432524581 is 18542523428509.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81377701279681 + 9204731244900 = 9020959^2 + 3033930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90582432524581 is a prime.

It is a super-2 number, since 2×90582432524581² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90582432524281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45291216262290 + 45291216262291.

It is an arithmetic number, because the mean of its divisors is an integer number (45291216262291).

Almost surely, 2^{90582432524581} is an apocalyptic number.

It is an amenable number.

90582432524581 is a deficient number, since it is larger than the sum of its proper divisors (1).

90582432524581 is an equidigital number, since it uses as much as digits as its factorization.

90582432524581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648000, while the sum is 58.

The spelling of 90582432524581 in words is "ninety trillion, five hundred eighty-two billion, four hundred thirty-two million, five hundred twenty-four thousand, five hundred eighty-one".