51222402445633 has 8 divisors (see below), whose sum is σ = 51237164266376. Its totient is φ = 51207641856000.

The previous prime is 51222402445589. The next prime is 51222402445637. The reversal of 51222402445633 is 33654420422215.

It can be written as a sum of positive squares in 4 ways, for example, as 1700668985409 + 49521733460224 = 1304097^2 + 7037168^2 .

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 51222402445633 - 2⁹ = 51222402445121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51222402445633.

It is not an unprimeable number, because it can be changed into a prime (51222402445637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86417485 + ... + 87008197.

It is an arithmetic number, because the mean of its divisors is an integer number (6404645533297).

Almost surely, 2^{51222402445633} is an apocalyptic number.

It is an amenable number.

51222402445633 is a deficient number, since it is larger than the sum of its proper divisors (14761820743).

51222402445633 is a wasteful number, since it uses less digits than its factorization.

51222402445633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615555.

The product of its (nonzero) digits is 1382400, while the sum is 43.

Adding to 51222402445633 its reverse (33654420422215), we get a palindrome (84876822867848).

The spelling of 51222402445633 in words is "fifty-one trillion, two hundred twenty-two billion, four hundred two million, four hundred forty-five thousand, six hundred thirty-three".