51509424580 has 48 divisors (see below), whose sum is σ = 108428281920. Its totient is φ = 20554604928.

The previous prime is 51509424569. The next prime is 51509424587. The reversal of 51509424580 is 8542490515.

It is not an unprimeable number, because it can be changed into a prime (51509424587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23637931 + ... + 23640109.

It is an arithmetic number, because the mean of its divisors is an integer number (2258922540).

Almost surely, 2^51509424580 is an apocalyptic number.

It is an amenable number.

51509424580 is an abundant number, since it is smaller than the sum of its proper divisors (56918857340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51509424580 is a wasteful number, since it uses less digits than its factorization.

51509424580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468 (or 4466 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 51509424580 in words is "fifty-one billion, five hundred nine million, four hundred twenty-four thousand, five hundred eighty".