51366004 has 24 divisors (see below), whose sum is σ = 91099008. Its totient is φ = 25340640.

The previous prime is 51365999. The next prime is 51366011. The reversal of 51366004 is 40066315.

51366004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51366004.

It is a congruent number.

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, 165009 + ... + 165319.

It is an arithmetic number, because the mean of its divisors is an integer number (3795792).

Almost surely, 2^51366004 is an apocalyptic number.

It is an amenable number.

51366004 is a deficient number, since it is larger than the sum of its proper divisors (39733004).

51366004 is a wasteful number, since it uses less digits than its factorization.

51366004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 733 counting only the distinct ones).

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

The square root of 51366004 is about 7167.0080228782. The cubic root of 51366004 is about 371.7279874513.

The spelling of 51366004 in words is "fifty-one million, three hundred sixty-six thousand, four".