50781061 has 2 divisors, whose sum is σ = 50781062. Its totient is φ = 50781060.

The previous prime is 50781043. The next prime is 50781119. The reversal of 50781061 is 16018705.

It is a happy number.

50781061 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., 49140100 + 1640961 = 7010^2 + 1281^2 .

It is a cyclic number.

It is not a de Polignac number, because 50781061 - 2¹¹ = 50779013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50781011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25390530 + 25390531.

It is an arithmetic number, because the mean of its divisors is an integer number (25390531).

Almost surely, 2^50781061 is an apocalyptic number.

It is an amenable number.

50781061 is a deficient number, since it is larger than the sum of its proper divisors (1).

50781061 is an equidigital number, since it uses as much as digits as its factorization.

50781061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 50781061 is about 7126.0831457400. The cubic root of 50781061 is about 370.3115491356.

Adding to 50781061 its reverse (16018705), we get a palindrome (66799766).

The spelling of 50781061 in words is "fifty million, seven hundred eighty-one thousand, sixty-one".