50781740 has 12 divisors (see below), whose sum is σ = 106641696. Its totient is φ = 20312688.

The previous prime is 50781727. The next prime is 50781749. The reversal of 50781740 is 4718705.

50781740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 50781697 and 50781706.

It is not an unprimeable number, because it can be changed into a prime (50781749) 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 3 ways as a sum of consecutive naturals, for example, 1269524 + ... + 1269563.

It is an arithmetic number, because the mean of its divisors is an integer number (8886808).

Almost surely, 2^50781740 is an apocalyptic number.

It is an amenable number.

50781740 is an abundant number, since it is smaller than the sum of its proper divisors (55859956).

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

50781740 is a wasteful number, since it uses less digits than its factorization.

50781740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539096 (or 2539094 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 50781740 is about 7126.1307874610. The cubic root of 50781740 is about 370.3131996224.

The spelling of 50781740 in words is "fifty million, seven hundred eighty-one thousand, seven hundred forty".