50530000281 has 32 divisors (see below), whose sum is σ = 71799936000. Its totient is φ = 31519067328.

The previous prime is 50530000277. The next prime is 50530000307. The reversal of 50530000281 is 18200003505.

It is not a de Polignac number, because 50530000281 - 2² = 50530000277 is a prime.

It is a super-2 number, since 2×50530000281² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50530000481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2213755 + ... + 2236463.

It is an arithmetic number, because the mean of its divisors is an integer number (2243748000).

Almost surely, 2^50530000281 is an apocalyptic number.

It is an amenable number.

50530000281 is a deficient number, since it is larger than the sum of its proper divisors (21269935719).

50530000281 is a wasteful number, since it uses less digits than its factorization.

50530000281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23213.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 50530000281 its reverse (18200003505), we get a palindrome (68730003786).

The spelling of 50530000281 in words is "fifty billion, five hundred thirty million, two hundred eighty-one", and thus it is an aban number.