50251009 has 2 divisors, whose sum is σ = 50251010. Its totient is φ = 50251008.

The previous prime is 50250983. The next prime is 50251027. The reversal of 50251009 is 90015205.

50251009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 124609 = 7080^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 50251009 - 2¹³ = 50242817 is a prime.

It is not a weakly prime, because it can be changed into another prime (50251079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25125504 + 25125505.

It is an arithmetic number, because the mean of its divisors is an integer number (25125505).

Almost surely, 2^50251009 is an apocalyptic number.

It is an amenable number.

50251009 is a deficient number, since it is larger than the sum of its proper divisors (1).

50251009 is an equidigital number, since it uses as much as digits as its factorization.

50251009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 50251009 is about 7088.7946083943. The cubic root of 50251009 is about 369.0186044874.

The spelling of 50251009 in words is "fifty million, two hundred fifty-one thousand, nine".