65481503 has 2 divisors, whose sum is σ = 65481504. Its totient is φ = 65481502.

The previous prime is 65481491. The next prime is 65481523. The reversal of 65481503 is 30518456.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65481503 - 2²² = 61287199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65481503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65481523) 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, 32740751 + 32740752.

It is an arithmetic number, because the mean of its divisors is an integer number (32740752).

Almost surely, 2^65481503 is an apocalyptic number.

65481503 is a deficient number, since it is larger than the sum of its proper divisors (1).

65481503 is an equidigital number, since it uses as much as digits as its factorization.

65481503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 65481503 is about 8092.0641989544. The cubic root of 65481503 is about 403.0629505523.

Adding to 65481503 its reverse (30518456), we get a palindrome (95999959).

The spelling of 65481503 in words is "sixty-five million, four hundred eighty-one thousand, five hundred three".