50751391 has 2 divisors, whose sum is σ = 50751392. Its totient is φ = 50751390.

The previous prime is 50751353. The next prime is 50751401. The reversal of 50751391 is 19315705.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50751391 - 2¹⁵ = 50718623 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50751791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25375695 + 25375696.

It is an arithmetic number, because the mean of its divisors is an integer number (25375696).

Almost surely, 2^50751391 is an apocalyptic number.

50751391 is a deficient number, since it is larger than the sum of its proper divisors (1).

50751391 is an equidigital number, since it uses as much as digits as its factorization.

50751391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 50751391 is about 7124.0010527793. The cubic root of 50751391 is about 370.2394140786.

The spelling of 50751391 in words is "fifty million, seven hundred fifty-one thousand, three hundred ninety-one".