50381257 has 2 divisors, whose sum is σ = 50381258. Its totient is φ = 50381256.

The previous prime is 50381237. The next prime is 50381263. The reversal of 50381257 is 75218305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35473936 + 14907321 = 5956^2 + 3861^2 .

It is a cyclic number.

It is not a de Polignac number, because 50381257 - 2¹¹ = 50379209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50381237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25190628 + 25190629.

It is an arithmetic number, because the mean of its divisors is an integer number (25190629).

Almost surely, 2^50381257 is an apocalyptic number.

It is an amenable number.

50381257 is a deficient number, since it is larger than the sum of its proper divisors (1).

50381257 is an equidigital number, since it uses as much as digits as its factorization.

50381257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 50381257 is about 7097.9755564527. The cubic root of 50381257 is about 369.3371550959.

The spelling of 50381257 in words is "fifty million, three hundred eighty-one thousand, two hundred fifty-seven".