50511055613 has 2 divisors, whose sum is σ = 50511055614. Its totient is φ = 50511055612.

The previous prime is 50511055591. The next prime is 50511055627. The reversal of 50511055613 is 31655011505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49549869604 + 961186009 = 222598^2 + 31003^2 .

It is a cyclic number.

It is not a de Polignac number, because 50511055613 - 2¹² = 50511051517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50511055613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50511055643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25255527806 + 25255527807.

It is an arithmetic number, because the mean of its divisors is an integer number (25255527807).

Almost surely, 2^50511055613 is an apocalyptic number.

It is an amenable number.

50511055613 is a deficient number, since it is larger than the sum of its proper divisors (1).

50511055613 is an equidigital number, since it uses as much as digits as its factorization.

50511055613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11250, while the sum is 32.

The spelling of 50511055613 in words is "fifty billion, five hundred eleven million, fifty-five thousand, six hundred thirteen".