50562721889 has 2 divisors, whose sum is σ = 50562721890. Its totient is φ = 50562721888.

The previous prime is 50562721873. The next prime is 50562722011. The reversal of 50562721889 is 98812726505.

50562721889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39956811664 + 10605910225 = 199892^2 + 102985^2 .

It is a cyclic number.

It is not a de Polignac number, because 50562721889 - 2⁴ = 50562721873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50562721889.

It is not a weakly prime, because it can be changed into another prime (50562721289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25281360944 + 25281360945.

It is an arithmetic number, because the mean of its divisors is an integer number (25281360945).

Almost surely, 2^50562721889 is an apocalyptic number.

It is an amenable number.

50562721889 is a deficient number, since it is larger than the sum of its proper divisors (1).

50562721889 is an equidigital number, since it uses as much as digits as its factorization.

50562721889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 50562721889 in words is "fifty billion, five hundred sixty-two million, seven hundred twenty-one thousand, eight hundred eighty-nine".