51473520004 has 12 divisors (see below), whose sum is σ = 90336767500. Its totient is φ = 25663015008.

The previous prime is 51473520001. The next prime is 51473520047. The reversal of 51473520004 is 40002537415.

It can be written as a sum of positive squares in 2 ways, for example, as 45689917504 + 5783602500 = 213752^2 + 76050^2 .

It is not an unprimeable number, because it can be changed into a prime (51473520001) 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 3 ways as a sum of consecutive naturals, for example, 18434679 + ... + 18437470.

Almost surely, 2^51473520004 is an apocalyptic number.

It is an amenable number.

51473520004 is a deficient number, since it is larger than the sum of its proper divisors (38863247496).

51473520004 is a wasteful number, since it uses less digits than its factorization.

51473520004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36872502 (or 36872500 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 51473520004 in words is "fifty-one billion, four hundred seventy-three million, five hundred twenty thousand, four".