51551630324 has 12 divisors (see below), whose sum is σ = 90217663200. Its totient is φ = 25775155128.

The previous prime is 51551630321. The next prime is 51551630329. The reversal of 51551630324 is 42303615515.

51551630324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51551630321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38657 + ... + 323415.

It is an arithmetic number, because the mean of its divisors is an integer number (7518138600).

Almost surely, 2^51551630324 is an apocalyptic number.

It is an amenable number.

51551630324 is a deficient number, since it is larger than the sum of its proper divisors (38666032876).

51551630324 is a wasteful number, since it uses less digits than its factorization.

51551630324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330022 (or 330020 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 51551630324 in words is "fifty-one billion, five hundred fifty-one million, six hundred thirty thousand, three hundred twenty-four".