51506484 has 24 divisors (see below), whose sum is σ = 120408288. Its totient is φ = 17136480.

The previous prime is 51506471. The next prime is 51506491. The reversal of 51506484 is 48460515.

51506484 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 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 7 ways as a sum of consecutive naturals, for example, 3094 + ... + 10610.

It is an arithmetic number, because the mean of its divisors is an integer number (5017012).

Almost surely, 2^51506484 is an apocalyptic number.

It is an amenable number.

51506484 is an abundant number, since it is smaller than the sum of its proper divisors (68901804).

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

51506484 is a wasteful number, since it uses less digits than its factorization.

51506484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095 (or 8093 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 51506484 is about 7176.8017946715. The cubic root of 51506484 is about 372.0665564807.

Adding to 51506484 its reverse (48460515), we get a palindrome (99966999).

The spelling of 51506484 in words is "fifty-one million, five hundred six thousand, four hundred eighty-four".