50212531 has 4 divisors (see below), whose sum is σ = 50251864. Its totient is φ = 50173200.

The previous prime is 50212523. The next prime is 50212537. The reversal of 50212531 is 13521205.

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 50212531 - 2³ = 50212523 is a prime.

It is a super-2 number, since 2×50212531² = 5042596538851922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50212499 and 50212508.

It is not an unprimeable number, because it can be changed into a prime (50212537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17685 + ... + 20326.

It is an arithmetic number, because the mean of its divisors is an integer number (12562966).

Almost surely, 2^50212531 is an apocalyptic number.

50212531 is a deficient number, since it is larger than the sum of its proper divisors (39333).

50212531 is a wasteful number, since it uses less digits than its factorization.

50212531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39332.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 50212531 is about 7086.0800870439. The cubic root of 50212531 is about 368.9243926242.

Adding to 50212531 its reverse (13521205), we get a palindrome (63733736).

The spelling of 50212531 in words is "fifty million, two hundred twelve thousand, five hundred thirty-one".