65215316 has 12 divisors (see below), whose sum is σ = 118062420. Its totient is φ = 31483200.

The previous prime is 65215313. The next prime is 65215333. The reversal of 65215316 is 61351256.

It can be written as a sum of positive squares in 2 ways, for example, as 41731600 + 23483716 = 6460^2 + 4846^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65215313) 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, 280985 + ... + 281216.

It is an arithmetic number, because the mean of its divisors is an integer number (9838535).

Almost surely, 2^65215316 is an apocalyptic number.

It is an amenable number.

65215316 is a deficient number, since it is larger than the sum of its proper divisors (52847104).

65215316 is a wasteful number, since it uses less digits than its factorization.

65215316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562234 (or 562232 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 65215316 is about 8075.6000396255. The cubic root of 65215316 is about 402.5160488952.

The spelling of 65215316 in words is "sixty-five million, two hundred fifteen thousand, three hundred sixteen".