50808140 has 12 divisors (see below), whose sum is σ = 106697136. Its totient is φ = 20323248.

The previous prime is 50808137. The next prime is 50808157. The reversal of 50808140 is 4180805.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1270184 + ... + 1270223.

It is an arithmetic number, because the mean of its divisors is an integer number (8891428).

Almost surely, 2^50808140 is an apocalyptic number.

It is an amenable number.

50808140 is an abundant number, since it is smaller than the sum of its proper divisors (55888996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50808140 is a wasteful number, since it uses less digits than its factorization.

50808140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540416 (or 2540414 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 50808140 is about 7127.9828843790. The cubic root of 50808140 is about 370.3773603150.

Adding to 50808140 its reverse (4180805), we get a palindrome (54988945).

The spelling of 50808140 in words is "fifty million, eight hundred eight thousand, one hundred forty".