51750067 has 4 divisors (see below), whose sum is σ = 53419456. Its totient is φ = 50080680.

The previous prime is 51750059. The next prime is 51750103. The reversal of 51750067 is 76005715.

51750067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51750067 - 2³ = 51750059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1669357 = 51750067 / (5 + 1 + 7 + 5 + 0 + 0 + 6 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51750047) 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, 834648 + ... + 834709.

It is an arithmetic number, because the mean of its divisors is an integer number (13354864).

Almost surely, 2^51750067 is an apocalyptic number.

51750067 is a deficient number, since it is larger than the sum of its proper divisors (1669389).

51750067 is a wasteful number, since it uses less digits than its factorization.

51750067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669388.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 51750067 is about 7193.7519417895. The cubic root of 51750067 is about 372.6521565084.

The spelling of 51750067 in words is "fifty-one million, seven hundred fifty thousand, sixty-seven".