65530403 has 2 divisors, whose sum is σ = 65530404. Its totient is φ = 65530402.

The previous prime is 65530397. The next prime is 65530417. The reversal of 65530403 is 30403556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65530403 - 2²⁰ = 64481827 is a prime.

It is not a weakly prime, because it can be changed into another prime (65530453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32765201 + 32765202.

It is an arithmetic number, because the mean of its divisors is an integer number (32765202).

Almost surely, 2^65530403 is an apocalyptic number.

65530403 is a deficient number, since it is larger than the sum of its proper divisors (1).

65530403 is an equidigital number, since it uses as much as digits as its factorization.

65530403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 65530403 is about 8095.0851138206. The cubic root of 65530403 is about 403.1632581362.

Adding to 65530403 its reverse (30403556), we get a palindrome (95933959).

The spelling of 65530403 in words is "sixty-five million, five hundred thirty thousand, four hundred three".