50424721 has 2 divisors, whose sum is σ = 50424722. Its totient is φ = 50424720.

The previous prime is 50424719. The next prime is 50424733. The reversal of 50424721 is 12742405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45968400 + 4456321 = 6780^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 50424721 - 2¹ = 50424719 is a prime.

Together with 50424719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50424701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25212360 + 25212361.

It is an arithmetic number, because the mean of its divisors is an integer number (25212361).

Almost surely, 2^50424721 is an apocalyptic number.

It is an amenable number.

50424721 is a deficient number, since it is larger than the sum of its proper divisors (1).

50424721 is an equidigital number, since it uses as much as digits as its factorization.

50424721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 50424721 is about 7101.0366144669. The cubic root of 50424721 is about 369.4433338417.

The spelling of 50424721 in words is "fifty million, four hundred twenty-four thousand, seven hundred twenty-one".