51411517 has 2 divisors, whose sum is σ = 51411518. Its totient is φ = 51411516.

The previous prime is 51411449. The next prime is 51411527. The reversal of 51411517 is 71511415.

51411517 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., 40081561 + 11329956 = 6331^2 + 3366^2 .

It is a cyclic number.

It is not a de Polignac number, because 51411517 - 2¹¹ = 51409469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51411491 and 51411500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51411527) 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, 25705758 + 25705759.

It is an arithmetic number, because the mean of its divisors is an integer number (25705759).

Almost surely, 2^51411517 is an apocalyptic number.

It is an amenable number.

51411517 is a deficient number, since it is larger than the sum of its proper divisors (1).

51411517 is an equidigital number, since it uses as much as digits as its factorization.

51411517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 700, while the sum is 25.

The square root of 51411517 is about 7170.1824941908. The cubic root of 51411517 is about 371.8377452687.

The spelling of 51411517 in words is "fifty-one million, four hundred eleven thousand, five hundred seventeen".