5456588855521 has 2 divisors, whose sum is σ = 5456588855522. Its totient is φ = 5456588855520.

The previous prime is 5456588855483. The next prime is 5456588855539. The reversal of 5456588855521 is 1255588856545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5319314900496 + 137273955025 = 2306364^2 + 370505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5456588855521 is a prime.

It is a super-2 number, since 2×5456588855521² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5456588855551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728294427760 + 2728294427761.

It is an arithmetic number, because the mean of its divisors is an integer number (2728294427761).

Almost surely, 2^{5456588855521} is an apocalyptic number.

It is an amenable number.

5456588855521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5456588855521 is an equidigital number, since it uses as much as digits as its factorization.

5456588855521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384000000, while the sum is 67.

The spelling of 5456588855521 in words is "five trillion, four hundred fifty-six billion, five hundred eighty-eight million, eight hundred fifty-five thousand, five hundred twenty-one".