50868889 has 2 divisors, whose sum is σ = 50868890. Its totient is φ = 50868888.

The previous prime is 50868887. The next prime is 50868901. The reversal of 50868889 is 98886805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 10673289 = 6340^2 + 3267^2 .

It is a cyclic number.

It is not a de Polignac number, because 50868889 - 2¹ = 50868887 is a prime.

Together with 50868887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50868887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25434444 + 25434445.

It is an arithmetic number, because the mean of its divisors is an integer number (25434445).

Almost surely, 2^50868889 is an apocalyptic number.

It is an amenable number.

50868889 is a deficient number, since it is larger than the sum of its proper divisors (1).

50868889 is an equidigital number, since it uses as much as digits as its factorization.

50868889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The square root of 50868889 is about 7132.2429151004. The cubic root of 50868889 is about 370.5249160202.

The spelling of 50868889 in words is "fifty million, eight hundred sixty-eight thousand, eight hundred eighty-nine".