51330632 has 8 divisors (see below), whose sum is σ = 96244950. Its totient is φ = 25665312.

The previous prime is 51330619. The next prime is 51330683. The reversal of 51330632 is 23603315.

51330632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50495236 + 835396 = 7106^2 + 914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 51330598 and 51330607.

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 as a sum of consecutive naturals, namely, 3208157 + ... + 3208172.

Almost surely, 2^51330632 is an apocalyptic number.

It is an amenable number.

51330632 is a deficient number, since it is larger than the sum of its proper divisors (44914318).

51330632 is a wasteful number, since it uses less digits than its factorization.

51330632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6416335 (or 6416331 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 51330632 is about 7164.5399014870. The cubic root of 51330632 is about 371.6426405895.

Adding to 51330632 its reverse (23603315), we get a palindrome (74933947).

The spelling of 51330632 in words is "fifty-one million, three hundred thirty thousand, six hundred thirty-two".