50440531 has 4 divisors (see below), whose sum is σ = 50463864. Its totient is φ = 50417200.

The previous prime is 50440529. The next prime is 50440543. The reversal of 50440531 is 13504405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13504405 = 5 ⋅2700881.

It is a cyclic number.

It is not a de Polignac number, because 50440531 - 2¹ = 50440529 is a prime.

It is a super-2 number, since 2×50440531² = 5088494335123922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50440501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8050 + ... + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (12615966).

Almost surely, 2^50440531 is an apocalyptic number.

50440531 is a deficient number, since it is larger than the sum of its proper divisors (23333).

50440531 is a wasteful number, since it uses less digits than its factorization.

50440531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23332.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 50440531 is about 7102.1497449716. The cubic root of 50440531 is about 369.4819411535.

Adding to 50440531 its reverse (13504405), we get a palindrome (63944936).

The spelling of 50440531 in words is "fifty million, four hundred forty thousand, five hundred thirty-one".