51356330 has 16 divisors (see below), whose sum is σ = 93108960. Its totient is φ = 20394192.

The previous prime is 51356287. The next prime is 51356339. The reversal of 51356330 is 3365315.

51356330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51356330.

It is not an unprimeable number, because it can be changed into a prime (51356339) by changing a digit.

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, 17084 + ... + 19863.

It is an arithmetic number, because the mean of its divisors is an integer number (5819310).

Almost surely, 2^51356330 is an apocalyptic number.

51356330 is a deficient number, since it is larger than the sum of its proper divisors (41752630).

51356330 is a wasteful number, since it uses less digits than its factorization.

51356330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37093.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 51356330 is about 7166.3330930121. Note that the first 3 decimals coincide. The cubic root of 51356330 is about 371.7046495621.

The spelling of 51356330 in words is "fifty-one million, three hundred fifty-six thousand, three hundred thirty".