51000053602403 has 4 divisors (see below), whose sum is σ = 51008479191408. Its totient is φ = 50991628013400.

The previous prime is 51000053602391. The next prime is 51000053602427. The reversal of 51000053602403 is 30420635000015.

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 51000053602403 - 2⁴ = 51000053602387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51000053602453) 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, 4212785423 + ... + 4212797528.

It is an arithmetic number, because the mean of its divisors is an integer number (12752119797852).

Almost surely, 2^{51000053602403} is an apocalyptic number.

51000053602403 is a deficient number, since it is larger than the sum of its proper divisors (8425589005).

51000053602403 is an equidigital number, since it uses as much as digits as its factorization.

51000053602403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425589004.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 51000053602403 its reverse (30420635000015), we get a palindrome (81420688602418).

The spelling of 51000053602403 in words is "fifty-one trillion, fifty-three million, six hundred two thousand, four hundred three".