51313667 has 16 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 45927552.

The previous prime is 51313643. The next prime is 51313697. The reversal of 51313667 is 76631315.

51313667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51313667 - 2¹⁸ = 51051523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51313637) 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 15 ways as a sum of consecutive naturals, for example, 102584 + ... + 103082.

It is an arithmetic number, because the mean of its divisors is an integer number (3564000).

Almost surely, 2^51313667 is an apocalyptic number.

51313667 is a deficient number, since it is larger than the sum of its proper divisors (5710333).

51313667 is a wasteful number, since it uses less digits than its factorization.

51313667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802.

The product of its digits is 11340, while the sum is 32.

The square root of 51313667 is about 7163.3558476457. The cubic root of 51313667 is about 371.6016929014.

The spelling of 51313667 in words is "fifty-one million, three hundred thirteen thousand, six hundred sixty-seven".