505650656 has 48 divisors (see below), whose sum is σ = 1144160640. Its totient is φ = 215479680.

The previous prime is 505650643. The next prime is 505650659. The reversal of 505650656 is 656056505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505650659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33791 + ... + 46401.

It is an arithmetic number, because the mean of its divisors is an integer number (23836680).

Almost surely, 2^505650656 is an apocalyptic number.

505650656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505650656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572080320).

505650656 is an abundant number, since it is smaller than the sum of its proper divisors (638509984).

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

505650656 is a wasteful number, since it uses less digits than its factorization.

505650656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807 (or 12799 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 505650656 is about 22486.6773001260. The cubic root of 505650656 is about 796.6792851379.

The spelling of 505650656 in words is "five hundred five million, six hundred fifty thousand, six hundred fifty-six".