51045300 has 108 divisors (see below), whose sum is σ = 163843680. Its totient is φ = 13285440.

The previous prime is 51045209. The next prime is 51045301. The reversal of 51045300 is 354015.

51045300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51045301) 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 35 ways as a sum of consecutive naturals, for example, 38041 + ... + 39359.

Almost surely, 2^51045300 is an apocalyptic number.

51045300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51045300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81921840).

51045300 is an abundant number, since it is smaller than the sum of its proper divisors (112798380).

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

51045300 is a wasteful number, since it uses less digits than its factorization.

51045300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 51045300 is about 7144.5993589564. The cubic root of 51045300 is about 370.9527430405.

Adding to 51045300 its reverse (354015), we get a palindrome (51399315).

It can be divided in two parts, 5104 and 5300, that added together give a square (10404 = 102²).

The spelling of 51045300 in words is "fifty-one million, forty-five thousand, three hundred".