51008504 has 16 divisors (see below), whose sum is σ = 95718120. Its totient is φ = 25483680.

The previous prime is 51008497. The next prime is 51008537. The reversal of 51008504 is 40580015.

51008504 = 1778² + 1779² + ... + 1793².

51008504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51008504³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51008504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15134 + ... + 18194.

Almost surely, 2^51008504 is an apocalyptic number.

It is an amenable number.

51008504 is a deficient number, since it is larger than the sum of its proper divisors (44709616).

51008504 is a wasteful number, since it uses less digits than its factorization.

51008504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5146 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 51008504 is about 7142.0238028167. The cubic root of 51008504 is about 370.8635878639.

Adding to 51008504 its reverse (40580015), we get a palindrome (91588519).

The spelling of 51008504 in words is "fifty-one million, eight thousand, five hundred four".