55656506066597 has 2 divisors, whose sum is σ = 55656506066598. Its totient is φ = 55656506066596.

The previous prime is 55656506066591. The next prime is 55656506066657. The reversal of 55656506066597 is 79566060565655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54660130776001 + 996375290596 = 7393249^2 + 998186^2 .

It is a cyclic number.

It is not a de Polignac number, because 55656506066597 - 2⁸ = 55656506066341 is a prime.

It is a super-2 number, since 2×55656506066597² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55656506066597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55656506066591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27828253033298 + 27828253033299.

It is an arithmetic number, because the mean of its divisors is an integer number (27828253033299).

Almost surely, 2^{55656506066597} is an apocalyptic number.

It is an amenable number.

55656506066597 is a deficient number, since it is larger than the sum of its proper divisors (1).

55656506066597 is an equidigital number, since it uses as much as digits as its factorization.

55656506066597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1530900000, while the sum is 71.

The spelling of 55656506066597 in words is "fifty-five trillion, six hundred fifty-six billion, five hundred six million, sixty-six thousand, five hundred ninety-seven".