50261689 has 2 divisors, whose sum is σ = 50261690. Its totient is φ = 50261688.

The previous prime is 50261671. The next prime is 50261699. The reversal of 50261689 is 98616205.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45333289 + 4928400 = 6733^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 50261689 - 2¹⁵ = 50228921 is a prime.

It is a super-2 number, since 2×50261689² = 5052474762265442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50261699) 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, 25130844 + 25130845.

It is an arithmetic number, because the mean of its divisors is an integer number (25130845).

Almost surely, 2^50261689 is an apocalyptic number.

It is an amenable number.

50261689 is a deficient number, since it is larger than the sum of its proper divisors (1).

50261689 is an equidigital number, since it uses as much as digits as its factorization.

50261689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 50261689 is about 7089.5478699280. The cubic root of 50261689 is about 369.0447455182.

The spelling of 50261689 in words is "fifty million, two hundred sixty-one thousand, six hundred eighty-nine".