90025084617 has 32 divisors (see below), whose sum is σ = 133509454848. Its totient is φ = 53605855296.

The previous prime is 90025084603. The next prime is 90025084619. The reversal of 90025084617 is 71648052009.

It is not a de Polignac number, because 90025084617 - 2⁸ = 90025084361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90025084619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71413 + ... + 430290.

It is an arithmetic number, because the mean of its divisors is an integer number (4172170464).

Almost surely, 2^90025084617 is an apocalyptic number.

It is an amenable number.

90025084617 is a deficient number, since it is larger than the sum of its proper divisors (43484370231).

90025084617 is a wasteful number, since it uses less digits than its factorization.

90025084617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501869.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 90025084617 in words is "ninety billion, twenty-five million, eighty-four thousand, six hundred seventeen".