650551338 has 48 divisors (see below), whose sum is σ = 1467831456. Its totient is φ = 215946000.

The previous prime is 650551331. The next prime is 650551351. The reversal of 650551338 is 833155056.

It is not an unprimeable number, because it can be changed into a prime (650551331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119320 + ... + 124652.

It is an arithmetic number, because the mean of its divisors is an integer number (30579822).

Almost surely, 2^650551338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650551338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733915728).

650551338 is an abundant number, since it is smaller than the sum of its proper divisors (817280118).

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

650551338 is a wasteful number, since it uses less digits than its factorization.

650551338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601 (or 5589 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 650551338 is about 25505.9079038563. The cubic root of 650551338 is about 866.4839543495.

The spelling of 650551338 in words is "six hundred fifty million, five hundred fifty-one thousand, three hundred thirty-eight".