51078004 has 12 divisors (see below), whose sum is σ = 94091200. Its totient is φ = 24194808.

The previous prime is 51077993. The next prime is 51078007. The reversal of 51078004 is 40087015.

51078004 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 51078004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51078007) 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, 335964 + ... + 336115.

Almost surely, 2^51078004 is an apocalyptic number.

It is an amenable number.

51078004 is a deficient number, since it is larger than the sum of its proper divisors (43013196).

51078004 is a wasteful number, since it uses less digits than its factorization.

51078004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672102 (or 672100 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 51078004 is about 7146.8877142432. The cubic root of 51078004 is about 371.0319475156.

The spelling of 51078004 in words is "fifty-one million, seventy-eight thousand, four".