51280288 has 12 divisors (see below), whose sum is σ = 100958130. Its totient is φ = 25640128.

The previous prime is 51280283. The next prime is 51280291. The reversal of 51280288 is 88208215.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36626704 + 14653584 = 6052^2 + 3828^2 .

It is not an unprimeable number, because it can be changed into a prime (51280283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801223 + ... + 801286.

Almost surely, 2^51280288 is an apocalyptic number.

It is an amenable number.

51280288 is a deficient number, since it is larger than the sum of its proper divisors (49677842).

51280288 is a wasteful number, since it uses less digits than its factorization.

51280288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602519 (or 1602511 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 51280288 is about 7161.0256248669. The cubic root of 51280288 is about 371.5211010949.

The spelling of 51280288 in words is "fifty-one million, two hundred eighty thousand, two hundred eighty-eight".