50455140121 has 2 divisors, whose sum is σ = 50455140122. Its totient is φ = 50455140120.

The previous prime is 50455140107. The next prime is 50455140199. The reversal of 50455140121 is 12104155405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50355360000 + 99780121 = 224400^2 + 9989^2 .

It is a cyclic number.

It is not a de Polignac number, because 50455140121 - 2¹⁷ = 50455009049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50455140121.

It is not a weakly prime, because it can be changed into another prime (50455140721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25227570060 + 25227570061.

It is an arithmetic number, because the mean of its divisors is an integer number (25227570061).

Almost surely, 2^50455140121 is an apocalyptic number.

It is an amenable number.

50455140121 is a deficient number, since it is larger than the sum of its proper divisors (1).

50455140121 is an equidigital number, since it uses as much as digits as its factorization.

50455140121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 50455140121 its reverse (12104155405), we get a palindrome (62559295526).

The spelling of 50455140121 in words is "fifty billion, four hundred fifty-five million, one hundred forty thousand, one hundred twenty-one".