51032200 has 48 divisors (see below), whose sum is σ = 122492160. Its totient is φ = 19752000.

The previous prime is 51032171. The next prime is 51032207. The reversal of 51032200 is 223015.

It is not an unprimeable number, because it can be changed into a prime (51032207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2085 + ... + 10315.

It is an arithmetic number, because the mean of its divisors is an integer number (2551920).

Almost surely, 2^51032200 is an apocalyptic number.

51032200 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 51032200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61246080).

51032200 is an abundant number, since it is smaller than the sum of its proper divisors (71459960).

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

51032200 is a wasteful number, since it uses less digits than its factorization.

51032200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278 (or 8269 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 51032200 is about 7143.6825237408. The cubic root of 51032200 is about 370.9210071987.

Adding to 51032200 its reverse (223015), we get a palindrome (51255215).

The spelling of 51032200 in words is "fifty-one million, thirty-two thousand, two hundred".