65763553 has 2 divisors, whose sum is σ = 65763554. Its totient is φ = 65763552.

The previous prime is 65763539. The next prime is 65763559. The reversal of 65763553 is 35536756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54420129 + 11343424 = 7377^2 + 3368^2 .

It is a cyclic number.

It is not a de Polignac number, because 65763553 - 2⁹ = 65763041 is a prime.

It is not a weakly prime, because it can be changed into another prime (65763559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32881776 + 32881777.

It is an arithmetic number, because the mean of its divisors is an integer number (32881777).

Almost surely, 2^65763553 is an apocalyptic number.

It is an amenable number.

65763553 is a deficient number, since it is larger than the sum of its proper divisors (1).

65763553 is an equidigital number, since it uses as much as digits as its factorization.

65763553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 40.

The square root of 65763553 is about 8109.4730408332. The cubic root of 65763553 is about 403.6408291136.

The spelling of 65763553 in words is "sixty-five million, seven hundred sixty-three thousand, five hundred fifty-three".