50265989 has 2 divisors, whose sum is σ = 50265990. Its totient is φ = 50265988.

The previous prime is 50265953. The next prime is 50266003. The reversal of 50265989 is 98956205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 21696964 = 5345^2 + 4658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50265989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50265949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25132994 + 25132995.

It is an arithmetic number, because the mean of its divisors is an integer number (25132995).

Almost surely, 2^50265989 is an apocalyptic number.

It is an amenable number.

50265989 is a deficient number, since it is larger than the sum of its proper divisors (1).

50265989 is an equidigital number, since it uses as much as digits as its factorization.

50265989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 50265989 is about 7089.8511267868. The cubic root of 50265989 is about 369.0552694195.

The spelling of 50265989 in words is "fifty million, two hundred sixty-five thousand, nine hundred eighty-nine".