52531228 has 12 divisors (see below), whose sum is σ = 92064280. Its totient is φ = 26227152.

The previous prime is 52531189. The next prime is 52531247. The reversal of 52531228 is 82213525.

It is a junction number, because it is equal to n+sod(n) for n = 52531196 and 52531205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6426 + ... + 12097.

Almost surely, 2^52531228 is an apocalyptic number.

It is an amenable number.

52531228 is a deficient number, since it is larger than the sum of its proper divisors (39533052).

52531228 is a wasteful number, since it uses less digits than its factorization.

52531228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19236 (or 19234 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 52531228 is about 7247.8429894693. The cubic root of 52531228 is about 374.5178467113.

The spelling of 52531228 in words is "fifty-two million, five hundred thirty-one thousand, two hundred twenty-eight".