51422200 has 48 divisors (see below), whose sum is σ = 122492160. Its totient is φ = 20064000.

The previous prime is 51422171. The next prime is 51422201. The reversal of 51422200 is 222415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51422201) 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, 5065 + ... + 11335.

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

Almost surely, 2^51422200 is an apocalyptic number.

51422200 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 51422200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61246080).

51422200 is an abundant number, since it is smaller than the sum of its proper divisors (71069960).

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

51422200 is a wasteful number, since it uses less digits than its factorization.

51422200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6328 (or 6319 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 51422200 is about 7170.9274156137. The cubic root of 51422200 is about 371.8634986910.

Adding to 51422200 its reverse (222415), we get a palindrome (51644615).

The spelling of 51422200 in words is "fifty-one million, four hundred twenty-two thousand, two hundred".