90298225 has 12 divisors (see below), whose sum is σ = 112374256. Its totient is φ = 71977680.

The previous prime is 90298223. The next prime is 90298231. The reversal of 90298225 is 52289209.

It is a happy number.

It is not a de Polignac number, because 90298225 - 2¹ = 90298223 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90298223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 694 + ... + 13456.

Almost surely, 2^90298225 is an apocalyptic number.

It is an amenable number.

90298225 is a deficient number, since it is larger than the sum of its proper divisors (22076031).

90298225 is a wasteful number, since it uses less digits than its factorization.

90298225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056 (or 13051 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 90298225 is about 9502.5378189197. The cubic root of 90298225 is about 448.6349166797.

The spelling of 90298225 in words is "ninety million, two hundred ninety-eight thousand, two hundred twenty-five".