65516530 has 8 divisors (see below), whose sum is σ = 117929772. Its totient is φ = 26206608.

The previous prime is 65516519. The next prime is 65516537. The reversal of 65516530 is 3561556.

It can be written as a sum of positive squares in 2 ways, for example, as 65496649 + 19881 = 8093^2 + 141^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 65516492 and 65516501.

It is not an unprimeable number, because it can be changed into a prime (65516537) 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, 3275817 + ... + 3275836.

Almost surely, 2^65516530 is an apocalyptic number.

65516530 is a deficient number, since it is larger than the sum of its proper divisors (52413242).

65516530 is a wasteful number, since it uses less digits than its factorization.

65516530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6551660.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 65516530 is about 8094.2281905071. The cubic root of 65516530 is about 403.1348058028.

The spelling of 65516530 in words is "sixty-five million, five hundred sixteen thousand, five hundred thirty".