90225582 has 16 divisors (see below), whose sum is σ = 180658560. Its totient is φ = 30040632.

The previous prime is 90225581. The next prime is 90225587. The reversal of 90225582 is 28552209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90225581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668 + ... + 13695.

It is an arithmetic number, because the mean of its divisors is an integer number (11291160).

Almost surely, 2^90225582 is an apocalyptic number.

90225582 is an abundant number, since it is smaller than the sum of its proper divisors (90432978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90225582 is a wasteful number, since it uses less digits than its factorization.

90225582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17287.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 90225582 is about 9498.7147551656. The cubic root of 90225582 is about 448.5145786571.

The spelling of 90225582 in words is "ninety million, two hundred twenty-five thousand, five hundred eighty-two".