50513217401 has 2 divisors, whose sum is σ = 50513217402. Its totient is φ = 50513217400.

The previous prime is 50513217397. The next prime is 50513217421. The reversal of 50513217401 is 10471231505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42817541776 + 7695675625 = 206924^2 + 87725^2 .

It is a cyclic number.

It is not a de Polignac number, because 50513217401 - 2² = 50513217397 is a prime.

It is not a weakly prime, because it can be changed into another prime (50513217421) 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, 25256608700 + 25256608701.

It is an arithmetic number, because the mean of its divisors is an integer number (25256608701).

Almost surely, 2^50513217401 is an apocalyptic number.

It is an amenable number.

50513217401 is a deficient number, since it is larger than the sum of its proper divisors (1).

50513217401 is an equidigital number, since it uses as much as digits as its factorization.

50513217401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

Adding to 50513217401 its reverse (10471231505), we get a palindrome (60984448906).

The spelling of 50513217401 in words is "fifty billion, five hundred thirteen million, two hundred seventeen thousand, four hundred one".