557718233953 has 2 divisors, whose sum is σ = 557718233954. Its totient is φ = 557718233952.

The previous prime is 557718233851. The next prime is 557718233993. The reversal of 557718233953 is 359332817755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305967178449 + 251751055504 = 553143^2 + 501748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557718233953 is a prime.

It is a super-2 number, since 2×557718233953² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557718233993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278859116976 + 278859116977.

It is an arithmetic number, because the mean of its divisors is an integer number (278859116977).

Almost surely, 2^557718233953 is an apocalyptic number.

It is an amenable number.

557718233953 is a deficient number, since it is larger than the sum of its proper divisors (1).

557718233953 is an equidigital number, since it uses as much as digits as its factorization.

557718233953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23814000, while the sum is 58.

The spelling of 557718233953 in words is "five hundred fifty-seven billion, seven hundred eighteen million, two hundred thirty-three thousand, nine hundred fifty-three".