65500403 has 2 divisors, whose sum is σ = 65500404. Its totient is φ = 65500402.

The previous prime is 65500399. The next prime is 65500417. The reversal of 65500403 is 30400556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65500403 - 2² = 65500399 is a prime.

It is not a weakly prime, because it can be changed into another prime (65500483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750201 + 32750202.

It is an arithmetic number, because the mean of its divisors is an integer number (32750202).

Almost surely, 2^65500403 is an apocalyptic number.

65500403 is a deficient number, since it is larger than the sum of its proper divisors (1).

65500403 is an equidigital number, since it uses as much as digits as its factorization.

65500403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 65500403 is about 8093.2319255042. The cubic root of 65500403 is about 403.1017256599.

Adding to 65500403 its reverse (30400556), we get a palindrome (95900959).

The spelling of 65500403 in words is "sixty-five million, five hundred thousand, four hundred three".