51045718325 has 48 divisors (see below), whose sum is σ = 74744930304. Its totient is φ = 33840849600.

The previous prime is 51045718313. The next prime is 51045718349. The reversal of 51045718325 is 52381754015.

It is a happy number.

It is not a de Polignac number, because 51045718325 - 2¹⁶ = 51045652789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6435512 + ... + 6443438.

It is an arithmetic number, because the mean of its divisors is an integer number (1557186048).

Almost surely, 2^51045718325 is an apocalyptic number.

It is an amenable number.

51045718325 is a deficient number, since it is larger than the sum of its proper divisors (23699211979).

51045718325 is a wasteful number, since it uses less digits than its factorization.

51045718325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9162 (or 9157 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 51045718325 in words is "fifty-one billion, forty-five million, seven hundred eighteen thousand, three hundred twenty-five".