650538090 has 24 divisors (see below), whose sum is σ = 1691399268. Its totient is φ = 173476800.

The previous prime is 650538067. The next prime is 650538173. The reversal of 650538090 is 90835056.

650538090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 572692761 + 77845329 = 23931^2 + 8823^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3614011 + ... + 3614190.

Almost surely, 2^650538090 is an apocalyptic number.

650538090 is an abundant number, since it is smaller than the sum of its proper divisors (1040861178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

650538090 is a wasteful number, since it uses less digits than its factorization.

650538090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7228214 (or 7228211 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 650538090 is about 25505.6481979972. The cubic root of 650538090 is about 866.4780725399.

The spelling of 650538090 in words is "six hundred fifty million, five hundred thirty-eight thousand, ninety".