51064417 has 2 divisors, whose sum is σ = 51064418. Its totient is φ = 51064416.

The previous prime is 51064411. The next prime is 51064451. The reversal of 51064417 is 71446015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39237696 + 11826721 = 6264^2 + 3439^2 .

It is a cyclic number.

It is not a de Polignac number, because 51064417 - 2¹⁵ = 51031649 is a prime.

It is not a weakly prime, because it can be changed into another prime (51064411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25532208 + 25532209.

It is an arithmetic number, because the mean of its divisors is an integer number (25532209).

Almost surely, 2^51064417 is an apocalyptic number.

It is an amenable number.

51064417 is a deficient number, since it is larger than the sum of its proper divisors (1).

51064417 is an equidigital number, since it uses as much as digits as its factorization.

51064417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 51064417 is about 7145.9370974002. The cubic root of 51064417 is about 370.9990458245. Note that the first 3 decimals are identical.

The spelling of 51064417 in words is "fifty-one million, sixty-four thousand, four hundred seventeen".