65260321 has 8 divisors (see below), whose sum is σ = 75605504. Its totient is φ = 55170720.

The previous prime is 65260319. The next prime is 65260333. The reversal of 65260321 is 12306256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65260321 - 2¹ = 65260319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65260381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63345 + ... + 64366.

It is an arithmetic number, because the mean of its divisors is an integer number (9450688).

Almost surely, 2^65260321 is an apocalyptic number.

It is an amenable number.

65260321 is a deficient number, since it is larger than the sum of its proper divisors (10345183).

65260321 is a wasteful number, since it uses less digits than its factorization.

65260321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127791.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 65260321 is about 8078.3860393027. The cubic root of 65260321 is about 402.6086195283.

Adding to 65260321 its reverse (12306256), we get a palindrome (77566577).

The spelling of 65260321 in words is "sixty-five million, two hundred sixty thousand, three hundred twenty-one".