51841800 has 144 divisors (see below), whose sum is σ = 176707440. Its totient is φ = 13618560.

The previous prime is 51841723. The next prime is 51841807. The reversal of 51841800 is 814815.

It is not an unprimeable number, because it can be changed into a prime (51841807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 149227 + ... + 149573.

It is an arithmetic number, because the mean of its divisors is an integer number (1227135).

Almost surely, 2^51841800 is an apocalyptic number.

51841800 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 51841800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88353720).

51841800 is an abundant number, since it is smaller than the sum of its proper divisors (124865640).

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

51841800 is a wasteful number, since it uses less digits than its factorization.

51841800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 51841800 is about 7200.1249989149. The cubic root of 51841800 is about 372.8722162652.

The spelling of 51841800 in words is "fifty-one million, eight hundred forty-one thousand, eight hundred".