51433322413 has 4 divisors (see below), whose sum is σ = 56109079008. Its totient is φ = 46757565820.

The previous prime is 51433322371. The next prime is 51433322419. The reversal of 51433322413 is 31422333415.

It is a happy number.

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-51433322413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51433322419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2337878281 + ... + 2337878302.

It is an arithmetic number, because the mean of its divisors is an integer number (14027269752).

Almost surely, 2^51433322413 is an apocalyptic number.

It is an amenable number.

51433322413 is a deficient number, since it is larger than the sum of its proper divisors (4675756595).

51433322413 is a wasteful number, since it uses less digits than its factorization.

51433322413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675756594.

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

Adding to 51433322413 its reverse (31422333415), we get a palindrome (82855655828).

The spelling of 51433322413 in words is "fifty-one billion, four hundred thirty-three million, three hundred twenty-two thousand, four hundred thirteen".