51141800 has 24 divisors (see below), whose sum is σ = 118905150. Its totient is φ = 20456640.

The previous prime is 51141799. The next prime is 51141809. The reversal of 51141800 is 814115.

It can be written as a sum of positive squares in 3 ways, for example, as 40475044 + 10666756 = 6362^2 + 3266^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (51141809) 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 5 ways as a sum of consecutive naturals, for example, 127655 + ... + 128054.

Almost surely, 2^51141800 is an apocalyptic number.

51141800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51141800 is an abundant number, since it is smaller than the sum of its proper divisors (67763350).

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

51141800 is a wasteful number, since it uses less digits than its factorization.

51141800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255725 (or 255716 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 51141800 is about 7151.3495229921. The cubic root of 51141800 is about 371.1863551824.

Adding to 51141800 its reverse (814115), we get a palindrome (51955915).

The spelling of 51141800 in words is "fifty-one million, one hundred forty-one thousand, eight hundred".