51007744 has 36 divisors (see below), whose sum is σ = 106255296. Its totient is φ = 24392192.

The previous prime is 51007729. The next prime is 51007757. The reversal of 51007744 is 44770015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (2951536).

Almost surely, 2^51007744 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 51007744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53127648).

51007744 is an abundant number, since it is smaller than the sum of its proper divisors (55247552).

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

51007744 is an equidigital number, since it uses as much as digits as its factorization.

51007744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8702 (or 8688 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 51007744 is about 7141.9705964110. The cubic root of 51007744 is about 370.8617459637.

Adding to 51007744 its reverse (44770015), we get a palindrome (95777759).

The spelling of 51007744 in words is "fifty-one million, seven thousand, seven hundred forty-four".