90535225 has 27 divisors (see below), whose sum is σ = 124114669. Its totient is φ = 65463200.

The previous prime is 90535177. The next prime is 90535229. The reversal of 90535225 is 52253509.

The square root of 90535225 is 9515.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9966649 + 80568576 = 3157^2 + 8976^2 .

It is not a de Polignac number, because 90535225 - 2¹³ = 90527033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90535229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 523239 + ... + 523411.

Almost surely, 2^90535225 is an apocalyptic number.

90535225 is the 9515-th square number.

90535225 is the 4758-th centered octagonal number.

It is an amenable number.

90535225 is a deficient number, since it is larger than the sum of its proper divisors (33579444).

90535225 is a wasteful number, since it uses less digits than its factorization.

90535225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The cubic root of 90535225 is about 449.0270749526.

The spelling of 90535225 in words is "ninety million, five hundred thirty-five thousand, two hundred twenty-five".