50531471 has 4 divisors (see below), whose sum is σ = 51052512. Its totient is φ = 50010432.

The previous prime is 50531449. The next prime is 50531477. The reversal of 50531471 is 17413505.

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

It is a cyclic number.

It is not a de Polignac number, because 50531471 - 2¹⁸ = 50269327 is a prime.

It is a super-3 number, since 3×50531471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 50531471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50531477) 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, 260375 + ... + 260568.

It is an arithmetic number, because the mean of its divisors is an integer number (12763128).

Almost surely, 2^50531471 is an apocalyptic number.

50531471 is a deficient number, since it is larger than the sum of its proper divisors (521041).

50531471 is an equidigital number, since it uses as much as digits as its factorization.

50531471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521040.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 50531471 is about 7108.5491487363. The cubic root of 50531471 is about 369.7038560448.

Adding to 50531471 its reverse (17413505), we get a palindrome (67944976).

The spelling of 50531471 in words is "fifty million, five hundred thirty-one thousand, four hundred seventy-one".