51080260 has 96 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 15513600.

The previous prime is 51080243. The next prime is 51080269. The reversal of 51080260 is 6208015.

51080260 = T₃₈₆ + T₃₈₇ + ... + T₇₁₃.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (51080269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62736 + ... + 63544.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^51080260 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 51080260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68584320).

51080260 is an abundant number, since it is smaller than the sum of its proper divisors (86088380).

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

51080260 is a wasteful number, since it uses less digits than its factorization.

51080260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51080260 is about 7147.0455434396. The cubic root of 51080260 is about 371.0374099827.

Adding to 51080260 its reverse (6208015), we get a palindrome (57288275).

The spelling of 51080260 in words is "fifty-one million, eighty thousand, two hundred sixty".