50531243 has 4 divisors (see below), whose sum is σ = 57750000. Its totient is φ = 43312488.

The previous prime is 50531237. The next prime is 50531249. The reversal of 50531243 is 34213505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34213505 = 5 ⋅6842701.

It is an interprime number because it is at equal distance from previous prime (50531237) and next prime (50531249).

It is a cyclic number.

It is not a de Polignac number, because 50531243 - 2⁶ = 50531179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50531249) 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, 3609368 + ... + 3609381.

It is an arithmetic number, because the mean of its divisors is an integer number (14437500).

Almost surely, 2^50531243 is an apocalyptic number.

50531243 is a deficient number, since it is larger than the sum of its proper divisors (7218757).

50531243 is an equidigital number, since it uses as much as digits as its factorization.

50531243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218756.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 50531243 is about 7108.5331116905. The cubic root of 50531243 is about 369.7033000045.

Adding to 50531243 its reverse (34213505), we get a palindrome (84744748).

The spelling of 50531243 in words is "fifty million, five hundred thirty-one thousand, two hundred forty-three".