51727228 has 12 divisors (see below), whose sum is σ = 103454512. Its totient is φ = 22168800.

The previous prime is 51727217. The next prime is 51727229. The reversal of 51727228 is 82272715.

51727228 is an admirable number.

It is a super-2 number, since 2×51727228² = 5351412233127968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51727193 and 51727202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51727229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 923673 + ... + 923728.

Almost surely, 2^51727228 is an apocalyptic number.

It is an amenable number.

51727228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51727228 is a wasteful number, since it uses less digits than its factorization.

51727228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847412 (or 1847410 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 51727228 is about 7192.1643473992. The cubic root of 51727228 is about 372.5973272398.

The spelling of 51727228 in words is "fifty-one million, seven hundred twenty-seven thousand, two hundred twenty-eight".