51280260 has 48 divisors (see below), whose sum is σ = 145948992. Its totient is φ = 13449600.

The previous prime is 51280241. The next prime is 51280283. The reversal of 51280260 is 6208215.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51280260.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3346 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (3040604).

Almost surely, 2^51280260 is an apocalyptic number.

It is an amenable number.

51280260 is an abundant number, since it is smaller than the sum of its proper divisors (94668732).

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

51280260 is a wasteful number, since it uses less digits than its factorization.

51280260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14084 (or 14082 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 51280260 is about 7161.0236698394. The cubic root of 51280260 is about 371.5210334757.

Adding to 51280260 its reverse (6208215), we get a palindrome (57488475).

The spelling of 51280260 in words is "fifty-one million, two hundred eighty thousand, two hundred sixty".