65505303 has 12 divisors (see below), whose sum is σ = 94718520. Its totient is φ = 43624176.

The previous prime is 65505283. The next prime is 65505329. The reversal of 65505303 is 30350556.

It is a happy number.

65505303 is a `hidden beast` number, since 655 + 0 + 5 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 65505303 - 2¹³ = 65497111 is a prime.

It is a super-2 number, since 2×65505303² = 8581889442243618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65505373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6700 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (7893210).

Almost surely, 2^65505303 is an apocalyptic number.

65505303 is a deficient number, since it is larger than the sum of its proper divisors (29213217).

65505303 is a wasteful number, since it uses less digits than its factorization.

65505303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7678 (or 7675 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 65505303 is about 8093.5346419225. The cubic root of 65505303 is about 403.1117772479. Note that the first 3 decimals are identical.

Adding to 65505303 its reverse (30350556), we get a palindrome (95855859).

The spelling of 65505303 in words is "sixty-five million, five hundred five thousand, three hundred three".