650056506 has 64 divisors (see below), whose sum is σ = 1513054080. Its totient is φ = 184002560.

The previous prime is 650056493. The next prime is 650056507. The reversal of 650056506 is 605650056.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (650056507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151600 + ... + 155828.

It is an arithmetic number, because the mean of its divisors is an integer number (23641470).

Almost surely, 2^650056506 is an apocalyptic number.

650056506 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 650056506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756527040).

650056506 is an abundant number, since it is smaller than the sum of its proper divisors (862997574).

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

650056506 is a wasteful number, since it uses less digits than its factorization.

650056506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 650056506 is about 25496.2057177142. The cubic root of 650056506 is about 866.2642060017.

The spelling of 650056506 in words is "six hundred fifty million, fifty-six thousand, five hundred six".