50317000861 has 4 divisors (see below), whose sum is σ = 50317449724. Its totient is φ = 50316552000.

The previous prime is 50317000841. The next prime is 50317000883. The reversal of 50317000861 is 16800071305.

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 2 ways, for example, as 6237998361 + 44079002500 = 78981^2 + 209950^2 .

It is a cyclic number.

It is not a de Polignac number, because 50317000861 - 2⁷ = 50317000733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50317000841) 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, 101371 + ... + 333031.

It is an arithmetic number, because the mean of its divisors is an integer number (12579362431).

Almost surely, 2^50317000861 is an apocalyptic number.

50317000861 is the 100317-th centered decagonal number.

It is an amenable number.

50317000861 is a deficient number, since it is larger than the sum of its proper divisors (448863).

50317000861 is a wasteful number, since it uses less digits than its factorization.

50317000861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448862.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 50317000861 in words is "fifty billion, three hundred seventeen million, eight hundred sixty-one", and thus it is an aban number.