557105271761 has 2 divisors, whose sum is σ = 557105271762. Its totient is φ = 557105271760.

The previous prime is 557105271757. The next prime is 557105271787. The reversal of 557105271761 is 167172501755.

557105271761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330072081361 + 227033190400 = 574519^2 + 476480^2 .

It is a cyclic number.

It is not a de Polignac number, because 557105271761 - 2² = 557105271757 is a prime.

It is a super-2 number, since 2×557105271761² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557105271721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278552635880 + 278552635881.

It is an arithmetic number, because the mean of its divisors is an integer number (278552635881).

Almost surely, 2^557105271761 is an apocalyptic number.

It is an amenable number.

557105271761 is a deficient number, since it is larger than the sum of its proper divisors (1).

557105271761 is an equidigital number, since it uses as much as digits as its factorization.

557105271761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 514500, while the sum is 47.

The spelling of 557105271761 in words is "five hundred fifty-seven billion, one hundred five million, two hundred seventy-one thousand, seven hundred sixty-one".