51277064 has 8 divisors (see below), whose sum is σ = 96144510. Its totient is φ = 25638528.

The previous prime is 51277063. The next prime is 51277081. The reversal of 51277064 is 46077215.

It can be written as a sum of positive squares in only one way, i.e., 48580900 + 2696164 = 6970^2 + 1642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 51277064.

It is not an unprimeable number, because it can be changed into a prime (51277063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204809 + ... + 3204824.

Almost surely, 2^51277064 is an apocalyptic number.

It is an amenable number.

51277064 is a deficient number, since it is larger than the sum of its proper divisors (44867446).

51277064 is a wasteful number, since it uses less digits than its factorization.

51277064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409639 (or 6409635 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 51277064 is about 7160.8005139090. The cubic root of 51277064 is about 371.5133150678.

The spelling of 51277064 in words is "fifty-one million, two hundred seventy-seven thousand, sixty-four".