51520434024 has 32 divisors (see below), whose sum is σ = 129146418720. Its totient is φ = 17127433536.

The previous prime is 51520433963. The next prime is 51520434037. The reversal of 51520434024 is 42043402515.

It is a junction number, because it is equal to n+sod(n) for n = 51520433982 and 51520434000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2868642 + ... + 2886545.

It is an arithmetic number, because the mean of its divisors is an integer number (4035825585).

Almost surely, 2^51520434024 is an apocalyptic number.

It is an amenable number.

51520434024 is an abundant number, since it is smaller than the sum of its proper divisors (77625984696).

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

51520434024 is a wasteful number, since it uses less digits than its factorization.

51520434024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755569 (or 5755565 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 51520434024 its reverse (42043402515), we get a palindrome (93563836539).

The spelling of 51520434024 in words is "fifty-one billion, five hundred twenty million, four hundred thirty-four thousand, twenty-four".