13455242057 has 2 divisors, whose sum is σ = 13455242058. Its totient is φ = 13455242056.

The previous prime is 13455241981. The next prime is 13455242063. The reversal of 13455242057 is 75024255431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13427247376 + 27994681 = 115876^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 13455242057 - 2¹⁴ = 13455225673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13455242057.

It is not a weakly prime, because it can be changed into another prime (13455242657) 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, 6727621028 + 6727621029.

It is an arithmetic number, because the mean of its divisors is an integer number (6727621029).

Almost surely, 2^13455242057 is an apocalyptic number.

It is an amenable number.

13455242057 is a deficient number, since it is larger than the sum of its proper divisors (1).

13455242057 is an equidigital number, since it uses as much as digits as its factorization.

13455242057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 38.

Adding to 13455242057 its reverse (75024255431), we get a palindrome (88479497488).

The spelling of 13455242057 in words is "thirteen billion, four hundred fifty-five million, two hundred forty-two thousand, fifty-seven".