50390071 has 16 divisors (see below), whose sum is σ = 54720000. Its totient is φ = 46253376.

The previous prime is 50390069. The next prime is 50390077. The reversal of 50390071 is 17009305.

It is a cyclic number.

It is not a de Polignac number, because 50390071 - 2¹ = 50390069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50390077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88275 + ... + 88843.

It is an arithmetic number, because the mean of its divisors is an integer number (3420000).

Almost surely, 2^50390071 is an apocalyptic number.

50390071 is a deficient number, since it is larger than the sum of its proper divisors (4329929).

50390071 is a wasteful number, since it uses less digits than its factorization.

50390071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 50390071 is about 7098.5964105589. The cubic root of 50390071 is about 369.3586918609.

Adding to 50390071 its reverse (17009305), we get a palindrome (67399376).

The spelling of 50390071 in words is "fifty million, three hundred ninety thousand, seventy-one".