51352280 has 64 divisors (see below), whose sum is σ = 132770880. Its totient is φ = 17510400.

The previous prime is 51352267. The next prime is 51352289. The reversal of 51352280 is 8225315.

51352280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51352280² = 5274113322396800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51352289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67100 + ... + 67860.

It is an arithmetic number, because the mean of its divisors is an integer number (2074545).

Almost surely, 2^51352280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51352280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66385440).

51352280 is an abundant number, since it is smaller than the sum of its proper divisors (81418600).

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

51352280 is a wasteful number, since it uses less digits than its factorization.

51352280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51352280 is about 7166.0505161490. The cubic root of 51352280 is about 371.6948783329.

Adding to 51352280 its reverse (8225315), we get a palindrome (59577595).

The spelling of 51352280 in words is "fifty-one million, three hundred fifty-two thousand, two hundred eighty".