556054663 has 2 divisors, whose sum is σ = 556054664. Its totient is φ = 556054662.

The previous prime is 556054579. The next prime is 556054673. The reversal of 556054663 is 366450655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556054663 - 2⁹ = 556054151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556054673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278027331 + 278027332.

It is an arithmetic number, because the mean of its divisors is an integer number (278027332).

Almost surely, 2^556054663 is an apocalyptic number.

556054663 is a deficient number, since it is larger than the sum of its proper divisors (1).

556054663 is an equidigital number, since it uses as much as digits as its factorization.

556054663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 40.

The square root of 556054663 is about 23580.8113304017. The cubic root of 556054663 is about 822.3167987190.

The spelling of 556054663 in words is "five hundred fifty-six million, fifty-four thousand, six hundred sixty-three".