90912055250 has 16 divisors (see below), whose sum is σ = 170187367896. Its totient is φ = 36364822000.

The previous prime is 90912055217. The next prime is 90912055279. The reversal of 90912055250 is 5255021909.

It can be written as a sum of positive squares in 4 ways, for example, as 36806038801 + 54106016449 = 191849^2 + 232607^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181823861 + ... + 181824360.

Almost surely, 2^90912055250 is an apocalyptic number.

90912055250 is a deficient number, since it is larger than the sum of its proper divisors (79275312646).

90912055250 is a wasteful number, since it uses less digits than its factorization.

90912055250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363648238 (or 363648228 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 90912055250 in words is "ninety billion, nine hundred twelve million, fifty-five thousand, two hundred fifty".