51280362 has 72 divisors (see below), whose sum is σ = 131806116. Its totient is φ = 14361984.

The previous prime is 51280349. The next prime is 51280379. The reversal of 51280362 is 26308215.

It can be written as a sum of positive squares in 2 ways, for example, as 51279921 + 441 = 7161^2 + 21^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46198 + ... + 47294.

Almost surely, 2^51280362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51280362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65903058).

51280362 is an abundant number, since it is smaller than the sum of its proper divisors (80525754).

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

51280362 is a wasteful number, since it uses less digits than its factorization.

51280362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 51280362 is about 7161.0307917227. The cubic root of 51280362 is about 371.5212798026.

Adding to 51280362 its reverse (26308215), we get a palindrome (77588577).

The spelling of 51280362 in words is "fifty-one million, two hundred eighty thousand, three hundred sixty-two".