556617730523 has 2 divisors, whose sum is σ = 556617730524. Its totient is φ = 556617730522.

The previous prime is 556617730519. The next prime is 556617730573. The reversal of 556617730523 is 325037716655.

It is an a-pointer prime, because the next prime (556617730573) can be obtained adding 556617730523 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556617730523 - 2² = 556617730519 is a prime.

It is not a weakly prime, because it can be changed into another prime (556617730573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278308865261 + 278308865262.

It is an arithmetic number, because the mean of its divisors is an integer number (278308865262).

Almost surely, 2^556617730523 is an apocalyptic number.

556617730523 is a deficient number, since it is larger than the sum of its proper divisors (1).

556617730523 is an equidigital number, since it uses as much as digits as its factorization.

556617730523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969000, while the sum is 50.

The spelling of 556617730523 in words is "five hundred fifty-six billion, six hundred seventeen million, seven hundred thirty thousand, five hundred twenty-three".