50986917 has 6 divisors (see below), whose sum is σ = 73647782. Its totient is φ = 33991272.

The previous prime is 50986907. The next prime is 50986931. The reversal of 50986917 is 71968905.

It can be written as a sum of positive squares in only one way, i.e., 48525156 + 2461761 = 6966^2 + 1569^2 .

It is not a de Polignac number, because 50986917 - 2¹⁴ = 50970533 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 (50986907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2832598 + ... + 2832615.

Almost surely, 2^50986917 is an apocalyptic number.

It is an amenable number.

50986917 is a deficient number, since it is larger than the sum of its proper divisors (22660865).

50986917 is a wasteful number, since it uses less digits than its factorization.

50986917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665219 (or 5665216 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 50986917 is about 7140.5123765735. The cubic root of 50986917 is about 370.8112635044.

The spelling of 50986917 in words is "fifty million, nine hundred eighty-six thousand, nine hundred seventeen".