51628 has 6 divisors (see below), whose sum is σ = 90356. Its totient is φ = 25812.

The previous prime is 51613. The next prime is 51631. The reversal of 51628 is 82615.

It is a happy number.

51628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51599 and 51608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6450 + ... + 6457.

2⁵¹⁶²⁸ is an apocalyptic number.

It is an amenable number.

51628 is a deficient number, since it is larger than the sum of its proper divisors (38728).

51628 is a wasteful number, since it uses less digits than its factorization.

51628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12911 (or 12909 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 51628 is about 227.2179570369. The cubic root of 51628 is about 37.2358924402.

The spelling of 51628 in words is "fifty-one thousand, six hundred twenty-eight".