51444805325 has 12 divisors (see below), whose sum is σ = 64214023968. Its totient is φ = 40883286000.

The previous prime is 51444805301. The next prime is 51444805339. The reversal of 51444805325 is 52350844415.

It is not a de Polignac number, because 51444805325 - 2¹⁶ = 51444739789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6810107 + ... + 6817656.

It is an arithmetic number, because the mean of its divisors is an integer number (5351168664).

Almost surely, 2^51444805325 is an apocalyptic number.

It is an amenable number.

51444805325 is a deficient number, since it is larger than the sum of its proper divisors (12769218643).

51444805325 is a wasteful number, since it uses less digits than its factorization.

51444805325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627924 (or 13627919 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 41.

The spelling of 51444805325 in words is "fifty-one billion, four hundred forty-four million, eight hundred five thousand, three hundred twenty-five".