51443204203 has 8 divisors (see below), whose sum is σ = 52096656528. Its totient is φ = 50790553344.

The previous prime is 51443204191. The next prime is 51443204221. The reversal of 51443204203 is 30240234415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51443204203 - 2¹⁷ = 51443073131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51443204233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70650 + ... + 328447.

It is an arithmetic number, because the mean of its divisors is an integer number (6512082066).

Almost surely, 2^51443204203 is an apocalyptic number.

51443204203 is a deficient number, since it is larger than the sum of its proper divisors (653452325).

51443204203 is a wasteful number, since it uses less digits than its factorization.

51443204203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400733.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 51443204203 its reverse (30240234415), we get a palindrome (81683438618).

The spelling of 51443204203 in words is "fifty-one billion, four hundred forty-three million, two hundred four thousand, two hundred three".