50104793281 has 3 divisors (see below), whose sum is σ = 50105017123. Its totient is φ = 50104569440.

The previous prime is 50104793251. The next prime is 50104793287. The reversal of 50104793281 is 18239740105.

The square root of 50104793281 is 223841.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 54154881 + 50050638400 = 7359^2 + 223720^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50104793281 is a prime.

It is a super-2 number, since 2×50104793281² (a number of 22 digits) contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50104793287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 111921 + ... + 335761.

Almost surely, 2^50104793281 is an apocalyptic number.

50104793281 is the 223841-st square number.

50104793281 is the 111921-st centered octagonal number.

It is an amenable number.

50104793281 is a deficient number, since it is larger than the sum of its proper divisors (223842).

50104793281 is an frugal number, since it uses more digits than its factorization.

50104793281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447682 (or 223841 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 50104793281 in words is "fifty billion, one hundred four million, seven hundred ninety-three thousand, two hundred eighty-one".