50543531 has 4 divisors (see below), whose sum is σ = 51044064. Its totient is φ = 50043000.

The previous prime is 50543513. The next prime is 50543539. The reversal of 50543531 is 13534505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50543531 is a prime.

It is a super-2 number, since 2×50543531² = 5109297051895922, 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 50543531.

It is not an unprimeable number, because it can be changed into a prime (50543539) 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, 250115 + ... + 250316.

It is an arithmetic number, because the mean of its divisors is an integer number (12761016).

Almost surely, 2^50543531 is an apocalyptic number.

50543531 is a deficient number, since it is larger than the sum of its proper divisors (500533).

50543531 is a wasteful number, since it uses less digits than its factorization.

50543531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500532.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 50543531 is about 7109.3973724923. The cubic root of 50543531 is about 369.7332652675.

The spelling of 50543531 in words is "fifty million, five hundred forty-three thousand, five hundred thirty-one".