1055500616591 has 2 divisors, whose sum is σ = 1055500616592. Its totient is φ = 1055500616590.

The previous prime is 1055500616563. The next prime is 1055500616603. The reversal of 1055500616591 is 1956160055501.

It is a strong prime.

It is an emirp because it is prime and its reverse (1956160055501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1055500616591 - 2²² = 1055496422287 is a prime.

It is a super-2 number, since 2×1055500616591² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1055500616791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527750308295 + 527750308296.

It is an arithmetic number, because the mean of its divisors is an integer number (527750308296).

Almost surely, 2^{1055500616591} is an apocalyptic number.

1055500616591 is a deficient number, since it is larger than the sum of its proper divisors (1).

1055500616591 is an equidigital number, since it uses as much as digits as its factorization.

1055500616591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202500, while the sum is 44.

The spelling of 1055500616591 in words is "one trillion, fifty-five billion, five hundred million, six hundred sixteen thousand, five hundred ninety-one".