65523071 has 4 divisors (see below), whose sum is σ = 65994600. Its totient is φ = 65051544.

The previous prime is 65523037. The next prime is 65523091. The reversal of 65523071 is 17032556.

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 65523071 - 2²² = 61328767 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 (65523011) 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, 235556 + ... + 235833.

It is an arithmetic number, because the mean of its divisors is an integer number (16498650).

Almost surely, 2^65523071 is an apocalyptic number.

65523071 is a deficient number, since it is larger than the sum of its proper divisors (471529).

65523071 is a wasteful number, since it uses less digits than its factorization.

65523071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471528.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 65523071 is about 8094.6322337707. The cubic root of 65523071 is about 403.1482213333.

The spelling of 65523071 in words is "sixty-five million, five hundred twenty-three thousand, seventy-one".