53065559 has 2 divisors, whose sum is σ = 53065560. Its totient is φ = 53065558.

The previous prime is 53065513. The next prime is 53065567. The reversal of 53065559 is 95556035.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53065559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53005559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26532779 + 26532780.

It is an arithmetic number, because the mean of its divisors is an integer number (26532780).

Almost surely, 2^53065559 is an apocalyptic number.

53065559 is a deficient number, since it is larger than the sum of its proper divisors (1).

53065559 is an equidigital number, since it uses as much as digits as its factorization.

53065559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 101250, while the sum is 38.

The square root of 53065559 is about 7284.6111083571. The cubic root of 53065559 is about 375.7833910637.

The spelling of 53065559 in words is "fifty-three million, sixty-five thousand, five hundred fifty-nine".