50686780 has 48 divisors (see below), whose sum is σ = 110859840. Its totient is φ = 19443200.

The previous prime is 50686771. The next prime is 50686787. The reversal of 50686780 is 8768605.

50686780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50686787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162825 + ... + 163135.

It is an arithmetic number, because the mean of its divisors is an integer number (2309580).

Almost surely, 2^50686780 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 50686780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55429920).

50686780 is an abundant number, since it is smaller than the sum of its proper divisors (60173060).

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

50686780 is a wasteful number, since it uses less digits than its factorization.

50686780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 50686780 is about 7119.4648675304. The cubic root of 50686780 is about 370.0822315403.

The spelling of 50686780 in words is "fifty million, six hundred eighty-six thousand, seven hundred eighty".