51080980 has 12 divisors (see below), whose sum is σ = 107270100. Its totient is φ = 20432384.

The previous prime is 51080959. The next prime is 51080983. The reversal of 51080980 is 8908015.

51080980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 27227524 + 23853456 = 5218^2 + 4884^2 .

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51080983) 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 3 ways as a sum of consecutive naturals, for example, 1277005 + ... + 1277044.

It is an arithmetic number, because the mean of its divisors is an integer number (8939175).

Almost surely, 2^51080980 is an apocalyptic number.

It is an amenable number.

51080980 is an abundant number, since it is smaller than the sum of its proper divisors (56189120).

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

51080980 is a wasteful number, since it uses less digits than its factorization.

51080980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554058 (or 2554056 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 51080980 is about 7147.0959137261. The cubic root of 51080980 is about 371.0391532894.

Adding to 51080980 its reverse (8908015), we get a palindrome (59988995).

The spelling of 51080980 in words is "fifty-one million, eighty thousand, nine hundred eighty".