51231606224 has 20 divisors (see below), whose sum is σ = 100171894020. Its totient is φ = 25380794880.

The previous prime is 51231606203. The next prime is 51231606227. The reversal of 51231606224 is 42260613215.

51231606224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24423438400 + 26808167824 = 156280^2 + 163732^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51231606227) 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, 14686217 + ... + 14689704.

It is an arithmetic number, because the mean of its divisors is an integer number (5008594701).

Almost surely, 2^51231606224 is an apocalyptic number.

It is an amenable number.

51231606224 is a deficient number, since it is larger than the sum of its proper divisors (48940287796).

51231606224 is a wasteful number, since it uses less digits than its factorization.

51231606224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29376038 (or 29376032 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 51231606224 in words is "fifty-one billion, two hundred thirty-one million, six hundred six thousand, two hundred twenty-four".