51051204 has 36 divisors (see below), whose sum is σ = 136638684. Its totient is φ = 16015872.

The previous prime is 51051179. The next prime is 51051241. The reversal of 51051204 is 40215015.

51051204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 19713600 + 31337604 = 4440^2 + 5598^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 41097 + ... + 42320.

It is an arithmetic number, because the mean of its divisors is an integer number (3795519).

Almost surely, 2^51051204 is an apocalyptic number.

It is an amenable number.

51051204 is an abundant number, since it is smaller than the sum of its proper divisors (85587480).

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

51051204 is a wasteful number, since it uses less digits than its factorization.

51051204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83444 (or 83439 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 51051204 is about 7145.0125262311. The cubic root of 51051204 is about 370.9670441976.

Adding to 51051204 its reverse (40215015), we get a palindrome (91266219).

The spelling of 51051204 in words is "fifty-one million, fifty-one thousand, two hundred four".