50280091 has 2 divisors, whose sum is σ = 50280092. Its totient is φ = 50280090.

The previous prime is 50280073. The next prime is 50280107. The reversal of 50280091 is 19008205.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50280091 - 2⁷ = 50279963 is a prime.

It is not a weakly prime, because it can be changed into another prime (50280011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25140045 + 25140046.

It is an arithmetic number, because the mean of its divisors is an integer number (25140046).

Almost surely, 2^50280091 is an apocalyptic number.

50280091 is a deficient number, since it is larger than the sum of its proper divisors (1).

50280091 is an equidigital number, since it uses as much as digits as its factorization.

50280091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 50280091 is about 7090.8455772214. The cubic root of 50280091 is about 369.0897787096.

Adding to 50280091 its reverse (19008205), we get a palindrome (69288296).

The spelling of 50280091 in words is "fifty million, two hundred eighty thousand, ninety-one".