51045180 has 24 divisors (see below), whose sum is σ = 142926672. Its totient is φ = 13612032.

The previous prime is 51045179. The next prime is 51045187. The reversal of 51045180 is 8154015.

51045180 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 2×51045180² = 5211220802464800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51045180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045187) 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 7 ways as a sum of consecutive naturals, for example, 425317 + ... + 425436.

It is an arithmetic number, because the mean of its divisors is an integer number (5955278).

Almost surely, 2^51045180 is an apocalyptic number.

It is an amenable number.

51045180 is an abundant number, since it is smaller than the sum of its proper divisors (91881492).

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

51045180 is a wasteful number, since it uses less digits than its factorization.

51045180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850765 (or 850763 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 51045180 is about 7144.5909609998. The cubic root of 51045180 is about 370.9524523552.

Adding to 51045180 its reverse (8154015), we get a palindrome (59199195).

The spelling of 51045180 in words is "fifty-one million, forty-five thousand, one hundred eighty".