55742060617 has 2 divisors, whose sum is σ = 55742060618. Its totient is φ = 55742060616.

The previous prime is 55742060611. The next prime is 55742060663. The reversal of 55742060617 is 71606024755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47062529721 + 8679530896 = 216939^2 + 93164^2 .

It is a cyclic number.

It is not a de Polignac number, because 55742060617 - 2¹⁵ = 55742027849 is a prime.

It is not a weakly prime, because it can be changed into another prime (55742060611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27871030308 + 27871030309.

It is an arithmetic number, because the mean of its divisors is an integer number (27871030309).

Almost surely, 2^55742060617 is an apocalyptic number.

It is an amenable number.

55742060617 is a deficient number, since it is larger than the sum of its proper divisors (1).

55742060617 is an equidigital number, since it uses as much as digits as its factorization.

55742060617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 55742060617 in words is "fifty-five billion, seven hundred forty-two million, sixty thousand, six hundred seventeen".