242550521401057 has 2 divisors, whose sum is σ = 242550521401058. Its totient is φ = 242550521401056.

The previous prime is 242550521401043. The next prime is 242550521401151. The reversal of 242550521401057 is 750104125055242.

242550521401057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203561099690256 + 38989421710801 = 14267484^2 + 6244151^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242550521401057 is a prime.

It is not a weakly prime, because it can be changed into another prime (242550521401157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121275260700528 + 121275260700529.

It is an arithmetic number, because the mean of its divisors is an integer number (121275260700529).

Almost surely, 2^{242550521401057} is an apocalyptic number.

It is an amenable number.

242550521401057 is a deficient number, since it is larger than the sum of its proper divisors (1).

242550521401057 is an equidigital number, since it uses as much as digits as its factorization.

242550521401057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560000, while the sum is 43.

Adding to 242550521401057 its reverse (750104125055242), we get a palindrome (992654646456299).

The spelling of 242550521401057 in words is "two hundred forty-two trillion, five hundred fifty billion, five hundred twenty-one million, four hundred one thousand, fifty-seven".