51752161 has 8 divisors (see below), whose sum is σ = 52303104. Its totient is φ = 51204000.

The previous prime is 51752147. The next prime is 51752167. The reversal of 51752161 is 16125715.

51752161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51752161 - 2⁷ = 51752033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51752167) 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 7 ways as a sum of consecutive naturals, for example, 68536 + ... + 69286.

It is an arithmetic number, because the mean of its divisors is an integer number (6537888).

Almost surely, 2^51752161 is an apocalyptic number.

It is an amenable number.

51752161 is a deficient number, since it is larger than the sum of its proper divisors (550943).

51752161 is a wasteful number, since it uses less digits than its factorization.

51752161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391.

The product of its digits is 2100, while the sum is 28.

The square root of 51752161 is about 7193.8974832840. The cubic root of 51752161 is about 372.6571827376.

Adding to 51752161 its reverse (16125715), we get a palindrome (67877876).

The spelling of 51752161 in words is "fifty-one million, seven hundred fifty-two thousand, one hundred sixty-one".