245553050431121 has 2 divisors, whose sum is σ = 245553050431122. Its totient is φ = 245553050431120.

The previous prime is 245553050430889. The next prime is 245553050431153. The reversal of 245553050431121 is 121134050355542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196469560897600 + 49083489533521 = 14016760^2 + 7005961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245553050431121 is a prime.

It is not a weakly prime, because it can be changed into another prime (245553050433121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122776525215560 + 122776525215561.

It is an arithmetic number, because the mean of its divisors is an integer number (122776525215561).

Almost surely, 2^{245553050431121} is an apocalyptic number.

It is an amenable number.

245553050431121 is a deficient number, since it is larger than the sum of its proper divisors (1).

245553050431121 is an equidigital number, since it uses as much as digits as its factorization.

245553050431121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 245553050431121 in words is "two hundred forty-five trillion, five hundred fifty-three billion, fifty million, four hundred thirty-one thousand, one hundred twenty-one".