51030646 has 8 divisors (see below), whose sum is σ = 76717800. Its totient is φ = 25458048.

The previous prime is 51030643. The next prime is 51030647. The reversal of 51030646 is 64603015.

51030646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51030646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51030643) 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 3 ways as a sum of consecutive naturals, for example, 27516 + ... + 29311.

It is an arithmetic number, because the mean of its divisors is an integer number (9589725).

Almost surely, 2^51030646 is an apocalyptic number.

51030646 is a deficient number, since it is larger than the sum of its proper divisors (25687154).

51030646 is a wasteful number, since it uses less digits than its factorization.

51030646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57278.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 51030646 is about 7143.5737554812. The cubic root of 51030646 is about 370.9172421439.

The spelling of 51030646 in words is "fifty-one million, thirty thousand, six hundred forty-six".