51776804 has 6 divisors (see below), whose sum is σ = 90609414. Its totient is φ = 25888400.

The previous prime is 51776771. The next prime is 51776819. The reversal of 51776804 is 40867715.

It can be written as a sum of positive squares in only one way, i.e., 49674304 + 2102500 = 7048^2 + 1450^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472097 + ... + 6472104.

It is an arithmetic number, because the mean of its divisors is an integer number (15101569).

Almost surely, 2^51776804 is an apocalyptic number.

It is an amenable number.

51776804 is a deficient number, since it is larger than the sum of its proper divisors (38832610).

51776804 is a wasteful number, since it uses less digits than its factorization.

51776804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12944205 (or 12944203 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 51776804 is about 7195.6100505795. The cubic root of 51776804 is about 372.7163231582.

The spelling of 51776804 in words is "fifty-one million, seven hundred seventy-six thousand, eight hundred four".