50555840 has 56 divisors (see below), whose sum is σ = 125638560. Its totient is φ = 19340288.

The previous prime is 50555833. The next prime is 50555867. The reversal of 50555840 is 4855505.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 50555797 and 50555806.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3926 + ... + 10794.

Almost surely, 2^50555840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50555840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62819280).

50555840 is an abundant number, since it is smaller than the sum of its proper divisors (75082720).

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

50555840 is a wasteful number, since it uses less digits than its factorization.

50555840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6909 (or 6899 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 50555840 is about 7110.2630049809. The cubic root of 50555840 is about 369.7632768718.

The spelling of 50555840 in words is "fifty million, five hundred fifty-five thousand, eight hundred forty".