50509402313 has 2 divisors, whose sum is σ = 50509402314. Its totient is φ = 50509402312.

The previous prime is 50509402277. The next prime is 50509402327. The reversal of 50509402313 is 31320490505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45416724544 + 5092677769 = 213112^2 + 71363^2 .

It is a cyclic number.

It is not a de Polignac number, because 50509402313 - 2¹⁰ = 50509401289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50509402313.

It is not a weakly prime, because it can be changed into another prime (50509102313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25254701156 + 25254701157.

It is an arithmetic number, because the mean of its divisors is an integer number (25254701157).

Almost surely, 2^50509402313 is an apocalyptic number.

It is an amenable number.

50509402313 is a deficient number, since it is larger than the sum of its proper divisors (1).

50509402313 is an equidigital number, since it uses as much as digits as its factorization.

50509402313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 50509402313 its reverse (31320490505), we get a palindrome (81829892818).

The spelling of 50509402313 in words is "fifty billion, five hundred nine million, four hundred two thousand, three hundred thirteen".