556354549 has 2 divisors, whose sum is σ = 556354550. Its totient is φ = 556354548.

The previous prime is 556354493. The next prime is 556354571. The reversal of 556354549 is 945453655.

556354549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501446449 + 54908100 = 22393^2 + 7410^2 .

It is a cyclic number.

It is not a de Polignac number, because 556354549 - 2²⁷ = 422136821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556354499 and 556354508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556354049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278177274 + 278177275.

It is an arithmetic number, because the mean of its divisors is an integer number (278177275).

Almost surely, 2^556354549 is an apocalyptic number.

It is an amenable number.

556354549 is a deficient number, since it is larger than the sum of its proper divisors (1).

556354549 is an equidigital number, since it uses as much as digits as its factorization.

556354549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620000, while the sum is 46.

The square root of 556354549 is about 23587.1691603719. The cubic root of 556354549 is about 822.4646001215.

The spelling of 556354549 in words is "five hundred fifty-six million, three hundred fifty-four thousand, five hundred forty-nine".