50397643 has 2 divisors, whose sum is σ = 50397644. Its totient is φ = 50397642.

The previous prime is 50397637. The next prime is 50397653. The reversal of 50397643 is 34679305.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50397643 is a prime.

It is not a weakly prime, because it can be changed into another prime (50397653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25198821 + 25198822.

It is an arithmetic number, because the mean of its divisors is an integer number (25198822).

Almost surely, 2^50397643 is an apocalyptic number.

50397643 is a deficient number, since it is larger than the sum of its proper divisors (1).

50397643 is an equidigital number, since it uses as much as digits as its factorization.

50397643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 50397643 is about 7099.1297353971. The cubic root of 50397643 is about 369.3771918278.

It can be divided in two parts, 50397 and 643, that added together give a triangular number (51040 = T₃₁₉).

The spelling of 50397643 in words is "fifty million, three hundred ninety-seven thousand, six hundred forty-three".