65493451 has 2 divisors, whose sum is σ = 65493452. Its totient is φ = 65493450.

The previous prime is 65493403. The next prime is 65493457. The reversal of 65493451 is 15439456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65493451 - 2⁹ = 65492939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65493451.

It is not a weakly prime, because it can be changed into another prime (65493457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32746725 + 32746726.

It is an arithmetic number, because the mean of its divisors is an integer number (32746726).

Almost surely, 2^65493451 is an apocalyptic number.

65493451 is a deficient number, since it is larger than the sum of its proper divisors (1).

65493451 is an equidigital number, since it uses as much as digits as its factorization.

65493451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 65493451 is about 8092.8024194342. The cubic root of 65493451 is about 403.0874638527.

It can be divided in two parts, 6549 and 3451, that added together give a 4-th power (10000 = 10⁴).

The spelling of 65493451 in words is "sixty-five million, four hundred ninety-three thousand, four hundred fifty-one".