51318332 has 24 divisors (see below), whose sum is σ = 97020000. Its totient is φ = 23610816.

The previous prime is 51318317. The next prime is 51318341. The reversal of 51318332 is 23381315.

51318332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 2.

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, 17294 + ... + 20042.

It is an arithmetic number, because the mean of its divisors is an integer number (4042500).

Almost surely, 2^51318332 is an apocalyptic number.

51318332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51318332 is a deficient number, since it is larger than the sum of its proper divisors (45701668).

51318332 is a wasteful number, since it uses less digits than its factorization.

51318332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125 (or 3123 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 51318332 is about 7163.6814557879. The cubic root of 51318332 is about 371.6129535101.

Adding to 51318332 its reverse (23381315), we get a palindrome (74699647).

The spelling of 51318332 in words is "fifty-one million, three hundred eighteen thousand, three hundred thirty-two".