50571789313 has 2 divisors, whose sum is σ = 50571789314. Its totient is φ = 50571789312.

The previous prime is 50571789311. The next prime is 50571789319. The reversal of 50571789313 is 31398717505.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36163868224 + 14407921089 = 190168^2 + 120033^2 .

It is a cyclic number.

It is not a de Polignac number, because 50571789313 - 2¹ = 50571789311 is a prime.

It is a super-2 number, since 2×50571789313² (a number of 22 digits) contains 22 as substring.

Together with 50571789311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50571789311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25285894656 + 25285894657.

It is an arithmetic number, because the mean of its divisors is an integer number (25285894657).

Almost surely, 2^50571789313 is an apocalyptic number.

It is an amenable number.

50571789313 is a deficient number, since it is larger than the sum of its proper divisors (1).

50571789313 is an equidigital number, since it uses as much as digits as its factorization.

50571789313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 793800, while the sum is 49.

The spelling of 50571789313 in words is "fifty billion, five hundred seventy-one million, seven hundred eighty-nine thousand, three hundred thirteen".