90825082385 has 16 divisors (see below), whose sum is σ = 115412165712. Its totient is φ = 68379494400.

The previous prime is 90825082379. The next prime is 90825082393. The reversal of 90825082385 is 58328052809.

It is a Cunningham number, because it is equal to 301372²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 3013696 + 90822068689 = 1736^2 + 301367^2 .

It is not a de Polignac number, because 90825082385 - 2⁶ = 90825082321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979115 + ... + 1067855.

It is an arithmetic number, because the mean of its divisors is an integer number (7213260357).

Almost surely, 2^90825082385 is an apocalyptic number.

It is an amenable number.

90825082385 is a deficient number, since it is larger than the sum of its proper divisors (24587083327).

90825082385 is a wasteful number, since it uses less digits than its factorization.

90825082385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100804.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 90825082385 in words is "ninety billion, eight hundred twenty-five million, eighty-two thousand, three hundred eighty-five".