65264503 has 4 divisors (see below), whose sum is σ = 65283400. Its totient is φ = 65245608.

The previous prime is 65264473. The next prime is 65264527. The reversal of 65264503 is 30546256.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65264503 - 2²⁵ = 31710071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65264603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625 + ... + 11722.

It is an arithmetic number, because the mean of its divisors is an integer number (16320850).

Almost surely, 2^65264503 is an apocalyptic number.

65264503 is a deficient number, since it is larger than the sum of its proper divisors (18897).

65264503 is a wasteful number, since it uses less digits than its factorization.

65264503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18896.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 65264503 is about 8078.6448739872. The cubic root of 65264503 is about 402.6172193087.

The spelling of 65264503 in words is "sixty-five million, two hundred sixty-four thousand, five hundred three".