51304423603 has 2 divisors, whose sum is σ = 51304423604. Its totient is φ = 51304423602.

The previous prime is 51304423601. The next prime is 51304423609. The reversal of 51304423603 is 30632440315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51304423603 - 2¹ = 51304423601 is a prime.

Together with 51304423601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51304423601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25652211801 + 25652211802.

It is an arithmetic number, because the mean of its divisors is an integer number (25652211802).

Almost surely, 2^51304423603 is an apocalyptic number.

51304423603 is a deficient number, since it is larger than the sum of its proper divisors (1).

51304423603 is an equidigital number, since it uses as much as digits as its factorization.

51304423603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 51304423603 its reverse (30632440315), we get a palindrome (81936863918).

The spelling of 51304423603 in words is "fifty-one billion, three hundred four million, four hundred twenty-three thousand, six hundred three".