51970228 has 12 divisors (see below), whose sum is σ = 91000420. Its totient is φ = 25970112.

The previous prime is 51970223. The next prime is 51970249. The reversal of 51970228 is 82207915.

It can be written as a sum of positive squares in 2 ways, for example, as 29899024 + 22071204 = 5468^2 + 4698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51970193 and 51970202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51970223) 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, 8458 + ... + 13246.

Almost surely, 2^51970228 is an apocalyptic number.

It is an amenable number.

51970228 is a deficient number, since it is larger than the sum of its proper divisors (39030192).

51970228 is a wasteful number, since it uses less digits than its factorization.

51970228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506 (or 7504 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 51970228 is about 7209.0379385879. The cubic root of 51970228 is about 373.1798685429.

The spelling of 51970228 in words is "fifty-one million, nine hundred seventy thousand, two hundred twenty-eight".