51600064 has 28 divisors (see below), whose sum is σ = 103555800. Its totient is φ = 25507328.

The previous prime is 51600061. The next prime is 51600071. The reversal of 51600064 is 46000615.

It is not an unprimeable number, because it can be changed into a prime (51600061) 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 3 ways as a sum of consecutive naturals, for example, 1167 + ... + 10225.

Almost surely, 2^51600064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51600064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51777900).

51600064 is an abundant number, since it is smaller than the sum of its proper divisors (51955736).

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

51600064 is an equidigital number, since it uses as much as digits as its factorization.

51600064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160 (or 9150 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 51600064 is about 7183.3184531942. The cubic root of 51600064 is about 372.2917509317.

Adding to 51600064 its reverse (46000615), we get a palindrome (97600679).

The spelling of 51600064 in words is "fifty-one million, six hundred thousand, sixty-four".