506556550 has 12 divisors (see below), whose sum is σ = 942195276. Its totient is φ = 202622600.

The previous prime is 506556527. The next prime is 506556551. The reversal of 506556550 is 55655605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506556551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5065516 + ... + 5065615.

It is an arithmetic number, because the mean of its divisors is an integer number (78516273).

Almost surely, 2^506556550 is an apocalyptic number.

506556550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

506556550 is a deficient number, since it is larger than the sum of its proper divisors (435638726).

506556550 is a wasteful number, since it uses less digits than its factorization.

506556550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131143 (or 10131138 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 506556550 is about 22506.8111912816. The cubic root of 506556550 is about 797.1547625681.

The spelling of 506556550 in words is "five hundred six million, five hundred fifty-six thousand, five hundred fifty".