50247391 has 2 divisors, whose sum is σ = 50247392. Its totient is φ = 50247390.

The previous prime is 50247377. The next prime is 50247413. The reversal of 50247391 is 19374205.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50247391 - 2¹⁵ = 50214623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50247361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25123695 + 25123696.

It is an arithmetic number, because the mean of its divisors is an integer number (25123696).

Almost surely, 2^50247391 is an apocalyptic number.

50247391 is a deficient number, since it is larger than the sum of its proper divisors (1).

50247391 is an equidigital number, since it uses as much as digits as its factorization.

50247391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 50247391 is about 7088.5394123190. The cubic root of 50247391 is about 369.0097480062.

The spelling of 50247391 in words is "fifty million, two hundred forty-seven thousand, three hundred ninety-one".