51000512 has 28 divisors (see below), whose sum is σ = 102434136. Its totient is φ = 25190400.

The previous prime is 51000511. The next prime is 51000539. The reversal of 51000512 is 21500015.

It is not an unprimeable number, because it can be changed into a prime (51000511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512 + ... + 10112.

It is an arithmetic number, because the mean of its divisors is an integer number (3658362).

Almost surely, 2^51000512 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 51000512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51217068).

51000512 is an abundant number, since it is smaller than the sum of its proper divisors (51433624).

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

51000512 is an equidigital number, since it uses as much as digits as its factorization.

51000512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696 (or 9686 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 51000512 is about 7141.4642756230. The cubic root of 51000512 is about 370.8442179133.

Adding to 51000512 its reverse (21500015), we get a palindrome (72500527).

The spelling of 51000512 in words is "fifty-one million, five hundred twelve", and thus it is an aban number.