64495533 has 4 divisors (see below), whose sum is σ = 85994048. Its totient is φ = 42997020.

The previous prime is 64495513. The next prime is 64495537. The reversal of 64495533 is 33559446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64495533 - 2¹⁰ = 64494509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64495491 and 64495500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64495537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10749253 + ... + 10749258.

It is an arithmetic number, because the mean of its divisors is an integer number (21498512).

Almost surely, 2^64495533 is an apocalyptic number.

It is an amenable number.

64495533 is a deficient number, since it is larger than the sum of its proper divisors (21498515).

64495533 is a wasteful number, since it uses less digits than its factorization.

64495533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21498514.

The product of its digits is 194400, while the sum is 39.

The square root of 64495533 is about 8030.9110940167. The cubic root of 64495533 is about 401.0297073988.

The spelling of 64495533 in words is "sixty-four million, four hundred ninety-five thousand, five hundred thirty-three".