51967243 has 4 divisors (see below), whose sum is σ = 52699248. Its totient is φ = 51235240.

The previous prime is 51967241. The next prime is 51967247. The reversal of 51967243 is 34276915.

51967243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51967243 - 2¹ = 51967241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51967241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365896 + ... + 366037.

It is an arithmetic number, because the mean of its divisors is an integer number (13174812).

Almost surely, 2^51967243 is an apocalyptic number.

51967243 is a deficient number, since it is larger than the sum of its proper divisors (732005).

51967243 is an equidigital number, since it uses as much as digits as its factorization.

51967243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732004.

The product of its digits is 45360, while the sum is 37.

The square root of 51967243 is about 7208.8309038290. The cubic root of 51967243 is about 373.1727236622.

The spelling of 51967243 in words is "fifty-one million, nine hundred sixty-seven thousand, two hundred forty-three".