Adding to 51600000 its reverse (615), we get a palindrome (51600615).
It is a tau number, because it is divible by the number of its divisors (192).
Almost surely, 251600000 is an apocalyptic number.
51600000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.
51600000 is the 3840-th nonagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 51600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87650640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51600000 is an frugal number, since it uses more digits than its factorization.
51600000 is an evil number, because the sum of its binary digits is even.
The square root of 51600000 is about 7183.3139984272. The cubic root of 51600000 is about 372.2915970128.
The spelling of 51600000 in words is "fifty-one million, six hundred thousand".