51628232 has 8 divisors (see below), whose sum is σ = 96802950. Its totient is φ = 25814112.

The previous prime is 51628223. The next prime is 51628243. The reversal of 51628232 is 23282615.

It can be written as a sum of positive squares in only one way, i.e., 51351556 + 276676 = 7166^2 + 526^2 .

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 = 51628195 and 51628204.

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 as a sum of consecutive naturals, namely, 3226757 + ... + 3226772.

Almost surely, 2^51628232 is an apocalyptic number.

It is an amenable number.

51628232 is a deficient number, since it is larger than the sum of its proper divisors (45174718).

51628232 is a wasteful number, since it uses less digits than its factorization.

51628232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453535 (or 6453531 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 51628232 is about 7185.2788394049. The cubic root of 51628232 is about 372.3594821553.

The spelling of 51628232 in words is "fifty-one million, six hundred twenty-eight thousand, two hundred thirty-two".