90955825 has 6 divisors (see below), whose sum is σ = 112785254. Its totient is φ = 72764640.

The previous prime is 90955801. The next prime is 90955841. The reversal of 90955825 is 52855909.

It can be written as a sum of positive squares in 3 ways, for example, as 10817521 + 80138304 = 3289^2 + 8952^2 .

It is not a de Polignac number, because 90955825 - 2¹⁷ = 90824753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1819092 + ... + 1819141.

Almost surely, 2^90955825 is an apocalyptic number.

It is an amenable number.

90955825 is a deficient number, since it is larger than the sum of its proper divisors (21829429).

90955825 is a wasteful number, since it uses less digits than its factorization.

90955825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638243 (or 3638238 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 90955825 is about 9537.0763339715. The cubic root of 90955825 is about 449.7213501232.

The spelling of 90955825 in words is "ninety million, nine hundred fifty-five thousand, eight hundred twenty-five".