50863681 has 6 divisors (see below), whose sum is σ = 55908146. Its totient is φ = 46239600.

The previous prime is 50863669. The next prime is 50863697. The reversal of 50863681 is 18636805.

It can be written as a sum of positive squares in only one way, i.e., 50183056 + 680625 = 7084^2 + 825^2 .

It is not a de Polignac number, because 50863681 - 2¹³ = 50855489 is a prime.

It is a super-2 number, since 2×50863681² = 5174228089739522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50863681.

It is not an unprimeable number, because it can be changed into a prime (50863621) 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, 210060 + ... + 210301.

Almost surely, 2^50863681 is an apocalyptic number.

It is an amenable number.

50863681 is a deficient number, since it is larger than the sum of its proper divisors (5044465).

50863681 is a wasteful number, since it uses less digits than its factorization.

50863681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420383 (or 420372 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 50863681 is about 7131.8778032156. The cubic root of 50863681 is about 370.5122707036.

The spelling of 50863681 in words is "fifty million, eight hundred sixty-three thousand, six hundred eighty-one".