51067817 has 2 divisors, whose sum is σ = 51067818. Its totient is φ = 51067816.

The previous prime is 51067799. The next prime is 51067823. The reversal of 51067817 is 71876015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26822041 + 24245776 = 5179^2 + 4924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51067817 is a prime.

It is not a weakly prime, because it can be changed into another prime (51067867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25533908 + 25533909.

It is an arithmetic number, because the mean of its divisors is an integer number (25533909).

Almost surely, 2^51067817 is an apocalyptic number.

It is an amenable number.

51067817 is a deficient number, since it is larger than the sum of its proper divisors (1).

51067817 is an equidigital number, since it uses as much as digits as its factorization.

51067817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 51067817 is about 7146.1749908605. The cubic root of 51067817 is about 371.0072796648.

The spelling of 51067817 in words is "fifty-one million, sixty-seven thousand, eight hundred seventeen".