50981111 has 2 divisors, whose sum is σ = 50981112. Its totient is φ = 50981110.

The previous prime is 50981107. The next prime is 50981129. The reversal of 50981111 is 11118905.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50981111 - 2² = 50981107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50981131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25490555 + 25490556.

It is an arithmetic number, because the mean of its divisors is an integer number (25490556).

Almost surely, 2^50981111 is an apocalyptic number.

50981111 is a deficient number, since it is larger than the sum of its proper divisors (1).

50981111 is an equidigital number, since it uses as much as digits as its factorization.

50981111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 26.

The square root of 50981111 is about 7140.1058115409. The cubic root of 50981111 is about 370.7971879203.

The spelling of 50981111 in words is "fifty million, nine hundred eighty-one thousand, one hundred eleven".