65529197 has 4 divisors (see below), whose sum is σ = 65635680. Its totient is φ = 65422716.

The previous prime is 65529181. The next prime is 65529199. The reversal of 65529197 is 79192556.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 65529197 - 2⁴ = 65529181 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 (65529199) 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, 52313 + ... + 53550.

It is an arithmetic number, because the mean of its divisors is an integer number (16408920).

Almost surely, 2^65529197 is an apocalyptic number.

It is an amenable number.

65529197 is a deficient number, since it is larger than the sum of its proper divisors (106483).

65529197 is a wasteful number, since it uses less digits than its factorization.

65529197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106482.

The product of its digits is 170100, while the sum is 44.

The square root of 65529197 is about 8095.0106238349. The cubic root of 65529197 is about 403.1607848930.

The spelling of 65529197 in words is "sixty-five million, five hundred twenty-nine thousand, one hundred ninety-seven".