1055600111557 has 2 divisors, whose sum is σ = 1055600111558. Its totient is φ = 1055600111556.

The previous prime is 1055600111551. The next prime is 1055600111567. The reversal of 1055600111557 is 7551110065501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1018335283876 + 37264827681 = 1009126^2 + 193041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055600111557 - 2³ = 1055600111549 is a prime.

It is a super-2 number, since 2×1055600111557² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055600111551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527800055778 + 527800055779.

It is an arithmetic number, because the mean of its divisors is an integer number (527800055779).

Almost surely, 2^{1055600111557} is an apocalyptic number.

It is an amenable number.

1055600111557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055600111557 is an equidigital number, since it uses as much as digits as its factorization.

1055600111557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26250, while the sum is 37.

The spelling of 1055600111557 in words is "one trillion, fifty-five billion, six hundred million, one hundred eleven thousand, five hundred fifty-seven".