50930781 has 8 divisors (see below), whose sum is σ = 74081184. Its totient is φ = 30867120.

The previous prime is 50930779. The next prime is 50930783. The reversal of 50930781 is 18703905.

It is an interprime number because it is at equal distance from previous prime (50930779) and next prime (50930783).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50930781 - 2¹ = 50930779 is a prime.

It is a super-2 number, since 2×50930781² = 5187888906539922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1543357 = 50930781 / (5 + 0 + 9 + 3 + 0 + 7 + 8 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50930783) by changing a digit.

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, 771646 + ... + 771711.

It is an arithmetic number, because the mean of its divisors is an integer number (9260148).

Almost surely, 2^50930781 is an apocalyptic number.

It is an amenable number.

50930781 is a deficient number, since it is larger than the sum of its proper divisors (23150403).

50930781 is a wasteful number, since it uses less digits than its factorization.

50930781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543371.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 50930781 is about 7136.5804836770. The cubic root of 50930781 is about 370.6751272409.

The spelling of 50930781 in words is "fifty million, nine hundred thirty thousand, seven hundred eighty-one".