51000418033 has 4 divisors (see below), whose sum is σ = 51015732208. Its totient is φ = 50985103860.

The previous prime is 51000418009. The next prime is 51000418043. The reversal of 51000418033 is 33081400015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51000418033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51000417989 and 51000418007.

It is not an unprimeable number, because it can be changed into a prime (51000418043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7652091 + ... + 7658752.

It is an arithmetic number, because the mean of its divisors is an integer number (12753933052).

Almost surely, 2^51000418033 is an apocalyptic number.

It is an amenable number.

51000418033 is a deficient number, since it is larger than the sum of its proper divisors (15314175).

51000418033 is a wasteful number, since it uses less digits than its factorization.

51000418033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15314174.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 51000418033 its reverse (33081400015), we get a palindrome (84081818048).

The spelling of 51000418033 in words is "fifty-one billion, four hundred eighteen thousand, thirty-three".