90420482258 has 6 divisors (see below), whose sum is σ = 135631361271. Its totient is φ = 45210028502.

The previous prime is 90420482213. The next prime is 90420482311. The reversal of 90420482258 is 85228402409.

It can be written as a sum of positive squares in only one way, i.e., 45210241129 + 45210241129 = 212627^2 + 212627^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=212627.

It is a super-2 number, since 2×90420482258² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 318941 + ... + 531567.

Almost surely, 2^90420482258 is an apocalyptic number.

90420482258 is a deficient number, since it is larger than the sum of its proper divisors (45210879013).

90420482258 is an frugal number, since it uses more digits than its factorization.

90420482258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425256 (or 212629 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 90420482258 in words is "ninety billion, four hundred twenty million, four hundred eighty-two thousand, two hundred fifty-eight".