51470017 has 2 divisors, whose sum is σ = 51470018. Its totient is φ = 51470016.

The previous prime is 51470009. The next prime is 51470051. The reversal of 51470017 is 71007415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 190096 = 7161^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 51470017 - 2³ = 51470009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51469973 and 51470000.

It is not a weakly prime, because it can be changed into another prime (51470117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25735008 + 25735009.

It is an arithmetic number, because the mean of its divisors is an integer number (25735009).

Almost surely, 2^51470017 is an apocalyptic number.

It is an amenable number.

51470017 is a deficient number, since it is larger than the sum of its proper divisors (1).

51470017 is an equidigital number, since it uses as much as digits as its factorization.

51470017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 51470017 is about 7174.2607284653. The cubic root of 51470017 is about 371.9787270565.

The spelling of 51470017 in words is "fifty-one million, four hundred seventy thousand, seventeen".