90195625 has 40 divisors (see below), whose sum is σ = 128715048. Its totient is φ = 62592000.

The previous prime is 90195607. The next prime is 90195649. The reversal of 90195625 is 52659109.

It can be written as a sum of positive squares in 20 ways, for example, as 89624089 + 571536 = 9467^2 + 756^2 .

It is not a de Polignac number, because 90195625 - 2¹¹ = 90193577 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 137799 + ... + 138451.

Almost surely, 2^90195625 is an apocalyptic number.

It is an amenable number.

90195625 is a deficient number, since it is larger than the sum of its proper divisors (38519423).

90195625 is a wasteful number, since it uses less digits than its factorization.

90195625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 90195625 is about 9497.1377267048. The cubic root of 90195625 is about 448.4649340580.

The spelling of 90195625 in words is "ninety million, one hundred ninety-five thousand, six hundred twenty-five".