51053307251 has 8 divisors (see below), whose sum is σ = 51354785664. Its totient is φ = 50752042560.

The previous prime is 51053307241. The next prime is 51053307313. The reversal of 51053307251 is 15270335015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51053307251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51053307241) 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, 439070 + ... + 543036.

It is an arithmetic number, because the mean of its divisors is an integer number (6419348208).

Almost surely, 2^51053307251 is an apocalyptic number.

51053307251 is a deficient number, since it is larger than the sum of its proper divisors (301478413).

51053307251 is a wasteful number, since it uses less digits than its factorization.

51053307251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106861.

The product of its (nonzero) digits is 15750, while the sum is 32.

The spelling of 51053307251 in words is "fifty-one billion, fifty-three million, three hundred seven thousand, two hundred fifty-one".