51477161 has 2 divisors, whose sum is σ = 51477162. Its totient is φ = 51477160.

The previous prime is 51477133. The next prime is 51477169. The reversal of 51477161 is 16177415.

51477161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48219136 + 3258025 = 6944^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 51477161 - 2¹⁰ = 51476137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51477169) 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 as a sum of consecutive naturals, namely, 25738580 + 25738581.

It is an arithmetic number, because the mean of its divisors is an integer number (25738581).

Almost surely, 2^51477161 is an apocalyptic number.

It is an amenable number.

51477161 is a deficient number, since it is larger than the sum of its proper divisors (1).

51477161 is an equidigital number, since it uses as much as digits as its factorization.

51477161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 32.

The square root of 51477161 is about 7174.7586022109. The cubic root of 51477161 is about 371.9959363837.

The spelling of 51477161 in words is "fifty-one million, four hundred seventy-seven thousand, one hundred sixty-one".