551606113 has 2 divisors, whose sum is σ = 551606114. Its totient is φ = 551606112.

The previous prime is 551606063. The next prime is 551606173. The reversal of 551606113 is 311606155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518336289 + 33269824 = 22767^2 + 5768^2 .

It is a cyclic number.

It is not a de Polignac number, because 551606113 - 2²¹ = 549508961 is a prime.

It is not a weakly prime, because it can be changed into another prime (551606173) 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 as a sum of consecutive naturals, namely, 275803056 + 275803057.

It is an arithmetic number, because the mean of its divisors is an integer number (275803057).

Almost surely, 2^551606113 is an apocalyptic number.

It is an amenable number.

551606113 is a deficient number, since it is larger than the sum of its proper divisors (1).

551606113 is an equidigital number, since it uses as much as digits as its factorization.

551606113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 551606113 is about 23486.2962810231. The cubic root of 551606113 is about 820.1180243561.

The spelling of 551606113 in words is "five hundred fifty-one million, six hundred six thousand, one hundred thirteen".