556138213403 has 2 divisors, whose sum is σ = 556138213404. Its totient is φ = 556138213402.

The previous prime is 556138213387. The next prime is 556138213427. The reversal of 556138213403 is 304312831655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556138213403 - 2⁴ = 556138213387 is a prime.

It is not a weakly prime, because it can be changed into another prime (556138203403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278069106701 + 278069106702.

It is an arithmetic number, because the mean of its divisors is an integer number (278069106702).

Almost surely, 2^556138213403 is an apocalyptic number.

556138213403 is a deficient number, since it is larger than the sum of its proper divisors (1).

556138213403 is an equidigital number, since it uses as much as digits as its factorization.

556138213403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 556138213403 in words is "five hundred fifty-six billion, one hundred thirty-eight million, two hundred thirteen thousand, four hundred three".