50640043 has 16 divisors (see below), whose sum is σ = 54867456. Its totient is φ = 46615360.

The previous prime is 50640011. The next prime is 50640049. The reversal of 50640043 is 34004605.

It is not a de Polignac number, because 50640043 - 2⁵ = 50640011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50639996 and 50640023.

It is not an unprimeable number, because it can be changed into a prime (50640049) 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, 77946 + ... + 78592.

It is an arithmetic number, because the mean of its divisors is an integer number (3429216).

Almost surely, 2^50640043 is an apocalyptic number.

50640043 is a deficient number, since it is larger than the sum of its proper divisors (4227413).

50640043 is a wasteful number, since it uses less digits than its factorization.

50640043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 50640043 is about 7116.1817711467. The cubic root of 50640043 is about 369.9684487340.

Adding to 50640043 its reverse (34004605), we get a palindrome (84644648).

The spelling of 50640043 in words is "fifty million, six hundred forty thousand, forty-three".