55466554657 has 2 divisors, whose sum is σ = 55466554658. Its totient is φ = 55466554656.

The previous prime is 55466554621. The next prime is 55466554681. The reversal of 55466554657 is 75645566455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38156152896 + 17310401761 = 195336^2 + 131569^2 .

It is a cyclic number.

It is not a de Polignac number, because 55466554657 - 2⁷ = 55466554529 is a prime.

It is not a weakly prime, because it can be changed into another prime (55466554697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27733277328 + 27733277329.

It is an arithmetic number, because the mean of its divisors is an integer number (27733277329).

Almost surely, 2^55466554657 is an apocalyptic number.

It is an amenable number.

55466554657 is a deficient number, since it is larger than the sum of its proper divisors (1).

55466554657 is an equidigital number, since it uses as much as digits as its factorization.

55466554657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600000, while the sum is 58.

The spelling of 55466554657 in words is "fifty-five billion, four hundred sixty-six million, five hundred fifty-four thousand, six hundred fifty-seven".