51452243 has 4 divisors (see below), whose sum is σ = 51466608. Its totient is φ = 51437880.

The previous prime is 51452231. The next prime is 51452267. The reversal of 51452243 is 34225415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51452243 - 2⁴ = 51452227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51452213) 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, 3053 + ... + 10593.

It is an arithmetic number, because the mean of its divisors is an integer number (12866652).

Almost surely, 2^51452243 is an apocalyptic number.

51452243 is a deficient number, since it is larger than the sum of its proper divisors (14365).

51452243 is an equidigital number, since it uses as much as digits as its factorization.

51452243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14364.

The product of its digits is 4800, while the sum is 26.

The square root of 51452243 is about 7173.0218876008. The cubic root of 51452243 is about 371.9359039952.

Adding to 51452243 its reverse (34225415), we get a palindrome (85677658).

The spelling of 51452243 in words is "fifty-one million, four hundred fifty-two thousand, two hundred forty-three".