51304264 has 32 divisors (see below), whose sum is σ = 105559200. Its totient is φ = 23182720.

The previous prime is 51304241. The next prime is 51304291. The reversal of 51304264 is 46240315.

51304264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14124 + ... + 17380.

It is an arithmetic number, because the mean of its divisors is an integer number (3298725).

Almost surely, 2^51304264 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 51304264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52779600).

51304264 is an abundant number, since it is smaller than the sum of its proper divisors (54254936).

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

51304264 is a wasteful number, since it uses less digits than its factorization.

51304264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 51304264 is about 7162.6994911137. The cubic root of 51304264 is about 371.5789933987.

Adding to 51304264 its reverse (46240315), we get a palindrome (97544579).

The spelling of 51304264 in words is "fifty-one million, three hundred four thousand, two hundred sixty-four".