50985751 has 4 divisors (see below), whose sum is σ = 51133032. Its totient is φ = 50838472.

The previous prime is 50985707. The next prime is 50985757. The reversal of 50985751 is 15758905.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15758905 = 5 ⋅3151781.

It is a cyclic number.

It is not a de Polignac number, because 50985751 - 2¹¹ = 50983703 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50985757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73120 + ... + 73813.

It is an arithmetic number, because the mean of its divisors is an integer number (12783258).

Almost surely, 2^50985751 is an apocalyptic number.

50985751 is a deficient number, since it is larger than the sum of its proper divisors (147281).

50985751 is a wasteful number, since it uses less digits than its factorization.

50985751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147280.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 50985751 is about 7140.4307293048. The cubic root of 50985751 is about 370.8084368366.

The spelling of 50985751 in words is "fifty million, nine hundred eighty-five thousand, seven hundred fifty-one".