51016417 has 2 divisors, whose sum is σ = 51016418. Its totient is φ = 51016416.

The previous prime is 51016409. The next prime is 51016453. The reversal of 51016417 is 71461015.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43349056 + 7667361 = 6584^2 + 2769^2 .

It is a cyclic number.

It is not a de Polignac number, because 51016417 - 2³ = 51016409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51016391 and 51016400.

It is not a weakly prime, because it can be changed into another prime (51016457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25508208 + 25508209.

It is an arithmetic number, because the mean of its divisors is an integer number (25508209).

Almost surely, 2^51016417 is an apocalyptic number.

It is an amenable number.

51016417 is a deficient number, since it is larger than the sum of its proper divisors (1).

51016417 is an equidigital number, since it uses as much as digits as its factorization.

51016417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 51016417 is about 7142.5777559646. The cubic root of 51016417 is about 370.8827643515.

The spelling of 51016417 in words is "fifty-one million, sixteen thousand, four hundred seventeen".