50990401 has 16 divisors (see below), whose sum is σ = 63803520. Its totient is φ = 39588480.

The previous prime is 50990393. The next prime is 50990413. The reversal of 50990401 is 10409905.

It is a cyclic number.

It is not a de Polignac number, because 50990401 - 2³ = 50990393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50990401.

It is not an unprimeable number, because it can be changed into a prime (50990431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23365 + ... + 25453.

It is an arithmetic number, because the mean of its divisors is an integer number (3987720).

Almost surely, 2^50990401 is an apocalyptic number.

It is an amenable number.

50990401 is a deficient number, since it is larger than the sum of its proper divisors (12813119).

50990401 is a wasteful number, since it uses less digits than its factorization.

50990401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 50990401 is about 7140.7563324903. The cubic root of 50990401 is about 370.8197093116.

The spelling of 50990401 in words is "fifty million, nine hundred ninety thousand, four hundred one".