556375553 has 2 divisors, whose sum is σ = 556375554. Its totient is φ = 556375552.

The previous prime is 556375531. The next prime is 556375601. The reversal of 556375553 is 355573655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441714289 + 114661264 = 21017^2 + 10708^2 .

It is a cyclic number.

It is not a de Polignac number, because 556375553 - 2⁸ = 556375297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (556375513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278187776 + 278187777.

It is an arithmetic number, because the mean of its divisors is an integer number (278187777).

Almost surely, 2^556375553 is an apocalyptic number.

It is an amenable number.

556375553 is a deficient number, since it is larger than the sum of its proper divisors (1).

556375553 is an equidigital number, since it uses as much as digits as its factorization.

556375553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1181250, while the sum is 44.

The square root of 556375553 is about 23587.6143982388. The cubic root of 556375553 is about 822.4749501337.

The spelling of 556375553 in words is "five hundred fifty-six million, three hundred seventy-five thousand, five hundred fifty-three".