51222650321 has 8 divisors (see below), whose sum is σ = 51281100000. Its totient is φ = 51164231040.

The previous prime is 51222650299. The next prime is 51222650351. The reversal of 51222650321 is 12305622215.

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 51222650321 - 2¹⁰ = 51222649297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51222650351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5254670 + ... + 5264408.

It is an arithmetic number, because the mean of its divisors is an integer number (6410137500).

Almost surely, 2^51222650321 is an apocalyptic number.

It is an amenable number.

51222650321 is a deficient number, since it is larger than the sum of its proper divisors (58449679).

51222650321 is a wasteful number, since it uses less digits than its factorization.

51222650321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15199.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 51222650321 in words is "fifty-one billion, two hundred twenty-two million, six hundred fifty thousand, three hundred twenty-one".