50006531 has 4 divisors (see below), whose sum is σ = 52180752. Its totient is φ = 47832312.

The previous prime is 50006513. The next prime is 50006563. The reversal of 50006531 is 13560005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13560005 = 5 ⋅2712001.

It is a cyclic number.

It is not a de Polignac number, because 50006531 - 2¹⁰ = 50005507 is a prime.

It is a super-2 number, since 2×50006531² = 5001306285307922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50006591) 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, 1087076 + ... + 1087121.

It is an arithmetic number, because the mean of its divisors is an integer number (13045188).

Almost surely, 2^50006531 is an apocalyptic number.

50006531 is a deficient number, since it is larger than the sum of its proper divisors (2174221).

50006531 is a wasteful number, since it uses less digits than its factorization.

50006531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2174220.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 50006531 is about 7071.5296082248. The cubic root of 50006531 is about 368.4191894388.

Adding to 50006531 its reverse (13560005), we get a palindrome (63566536).

The spelling of 50006531 in words is "fifty million, six thousand, five hundred thirty-one".