50781320 has 32 divisors (see below), whose sum is σ = 118200600. Its totient is φ = 19611648.

The previous prime is 50781301. The next prime is 50781347. The reversal of 50781320 is 2318705.

It can be written as a sum of positive squares in 4 ways, for example, as 26357956 + 24423364 = 5134^2 + 4942^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 50781320.

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, 20729 + ... + 23048.

Almost surely, 2^50781320 is an apocalyptic number.

It is an amenable number.

50781320 is an abundant number, since it is smaller than the sum of its proper divisors (67419280).

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

50781320 is a wasteful number, since it uses less digits than its factorization.

50781320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43817 (or 43813 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 50781320 is about 7126.1013183928. The cubic root of 50781320 is about 370.3121787045.

The spelling of 50781320 in words is "fifty million, seven hundred eighty-one thousand, three hundred twenty".