55065240497 has 2 divisors, whose sum is σ = 55065240498. Its totient is φ = 55065240496.

The previous prime is 55065240479. The next prime is 55065240523. The reversal of 55065240497 is 79404256055.

Together with previous prime (55065240479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40383313936 + 14681926561 = 200956^2 + 121169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55065240497 is a prime.

It is not a weakly prime, because it can be changed into another prime (55065240437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27532620248 + 27532620249.

It is an arithmetic number, because the mean of its divisors is an integer number (27532620249).

Almost surely, 2^55065240497 is an apocalyptic number.

It is an amenable number.

55065240497 is a deficient number, since it is larger than the sum of its proper divisors (1).

55065240497 is an equidigital number, since it uses as much as digits as its factorization.

55065240497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 55065240497 in words is "fifty-five billion, sixty-five million, two hundred forty thousand, four hundred ninety-seven".