90393250 has 32 divisors (see below), whose sum is σ = 179178480. Its totient is φ = 34028800.

The previous prime is 90393239. The next prime is 90393269. The reversal of 90393250 is 5239309.

It can be written as a sum of positive squares in 8 ways, for example, as 11840481 + 78552769 = 3441^2 + 8863^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6385 + ... + 14884.

Almost surely, 2^90393250 is an apocalyptic number.

90393250 is a deficient number, since it is larger than the sum of its proper divisors (88785230).

90393250 is a wasteful number, since it uses less digits than its factorization.

90393250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21303 (or 21293 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 90393250 is about 9507.5364842845. The cubic root of 90393250 is about 448.7922346016.

The spelling of 90393250 in words is "ninety million, three hundred ninety-three thousand, two hundred fifty".