551316506 has 16 divisors (see below), whose sum is σ = 921299400. Its totient is φ = 245679168.

The previous prime is 551316499. The next prime is 551316527. The reversal of 551316506 is 605613155.

It can be written as a sum of positive squares in 4 ways, for example, as 320732281 + 230584225 = 17909^2 + 15185^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 364841 + ... + 366348.

Almost surely, 2^551316506 is an apocalyptic number.

551316506 is a deficient number, since it is larger than the sum of its proper divisors (369982894).

551316506 is a wasteful number, since it uses less digits than its factorization.

551316506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731233.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 551316506 is about 23480.1300251936. The cubic root of 551316506 is about 819.9744717415.

The spelling of 551316506 in words is "five hundred fifty-one million, three hundred sixteen thousand, five hundred six".