65525346533 has 16 divisors (see below), whose sum is σ = 69929361216. Its totient is φ = 61183745280.

The previous prime is 65525346511. The next prime is 65525346547. The reversal of 65525346533 is 33564352556.

It is a happy number.

It is not a de Polignac number, because 65525346533 - 2²⁰ = 65524297957 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 (65525346563) 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 15 ways as a sum of consecutive naturals, for example, 1561535 + ... + 1602947.

It is an arithmetic number, because the mean of its divisors is an integer number (4370585076).

Almost surely, 2^65525346533 is an apocalyptic number.

It is an amenable number.

65525346533 is a deficient number, since it is larger than the sum of its proper divisors (4404014683).

65525346533 is a wasteful number, since it uses less digits than its factorization.

65525346533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42164.

The product of its digits is 4860000, while the sum is 47.

The spelling of 65525346533 in words is "sixty-five billion, five hundred twenty-five million, three hundred forty-six thousand, five hundred thirty-three".