65530312 has 16 divisors (see below), whose sum is σ = 128211840. Its totient is φ = 31340496.

The previous prime is 65530307. The next prime is 65530319. The reversal of 65530312 is 21303556.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (65530319) 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, 177888 + ... + 178255.

It is an arithmetic number, because the mean of its divisors is an integer number (8013240).

Almost surely, 2^65530312 is an apocalyptic number.

It is an amenable number.

65530312 is a deficient number, since it is larger than the sum of its proper divisors (62681528).

65530312 is a wasteful number, since it uses less digits than its factorization.

65530312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356172 (or 356168 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 65530312 is about 8095.0794931242. The cubic root of 65530312 is about 403.1630715160.

Adding to 65530312 its reverse (21303556), we get a palindrome (86833868).

The spelling of 65530312 in words is "sixty-five million, five hundred thirty thousand, three hundred twelve".