557388720029 has 2 divisors, whose sum is σ = 557388720030. Its totient is φ = 557388720028.

The previous prime is 557388719983. The next prime is 557388720079. The reversal of 557388720029 is 920027883755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383643972100 + 173744747929 = 619390^2 + 416827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557388720029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557388720079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278694360014 + 278694360015.

It is an arithmetic number, because the mean of its divisors is an integer number (278694360015).

Almost surely, 2^557388720029 is an apocalyptic number.

It is an amenable number.

557388720029 is a deficient number, since it is larger than the sum of its proper divisors (1).

557388720029 is an equidigital number, since it uses as much as digits as its factorization.

557388720029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 557388720029 in words is "five hundred fifty-seven billion, three hundred eighty-eight million, seven hundred twenty thousand, twenty-nine".