51065579 has 2 divisors, whose sum is σ = 51065580. Its totient is φ = 51065578.

The previous prime is 51065533. The next prime is 51065593. The reversal of 51065579 is 97556015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51065579 - 2²⁰ = 50017003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51065279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25532789 + 25532790.

It is an arithmetic number, because the mean of its divisors is an integer number (25532790).

Almost surely, 2^51065579 is an apocalyptic number.

51065579 is a deficient number, since it is larger than the sum of its proper divisors (1).

51065579 is an equidigital number, since it uses as much as digits as its factorization.

51065579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 51065579 is about 7146.0184018795. The cubic root of 51065579 is about 371.0018599016.

The spelling of 51065579 in words is "fifty-one million, sixty-five thousand, five hundred seventy-nine".