51505352 has 16 divisors (see below), whose sum is σ = 101655600. Its totient is φ = 24397200.

The previous prime is 51505343. The next prime is 51505367. The reversal of 51505352 is 25350515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169274 + ... + 169577.

It is an arithmetic number, because the mean of its divisors is an integer number (6353475).

Almost surely, 2^51505352 is an apocalyptic number.

It is an amenable number.

51505352 is a deficient number, since it is larger than the sum of its proper divisors (50150248).

51505352 is a wasteful number, since it uses less digits than its factorization.

51505352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338876 (or 338872 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 51505352 is about 7176.7229290255. The cubic root of 51505352 is about 372.0638307241.

Adding to 51505352 its reverse (25350515), we get a palindrome (76855867).

The spelling of 51505352 in words is "fifty-one million, five hundred five thousand, three hundred fifty-two".