65264567 has 4 divisors (see below), whose sum is σ = 65325696. Its totient is φ = 65203440.

The previous prime is 65264557. The next prime is 65264597. The reversal of 65264567 is 76546256.

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 65264567 - 2¹⁶ = 65199031 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 (65264527) 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, 28934 + ... + 31107.

It is an arithmetic number, because the mean of its divisors is an integer number (16331424).

Almost surely, 2^65264567 is an apocalyptic number.

65264567 is a deficient number, since it is larger than the sum of its proper divisors (61129).

65264567 is a wasteful number, since it uses less digits than its factorization.

65264567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61128.

The product of its digits is 302400, while the sum is 41.

The square root of 65264567 is about 8078.6488350466. The cubic root of 65264567 is about 402.6173509142.

The spelling of 65264567 in words is "sixty-five million, two hundred sixty-four thousand, five hundred sixty-seven".