65985485 has 4 divisors (see below), whose sum is σ = 79182588. Its totient is φ = 52788384.

The previous prime is 65985481. The next prime is 65985533. The reversal of 65985485 is 58458956.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35271721 + 30713764 = 5939^2 + 5542^2 .

It is a cyclic number.

It is not a de Polignac number, because 65985485 - 2² = 65985481 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 (65985481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6598544 + ... + 6598553.

It is an arithmetic number, because the mean of its divisors is an integer number (19795647).

Almost surely, 2^65985485 is an apocalyptic number.

It is an amenable number.

65985485 is a deficient number, since it is larger than the sum of its proper divisors (13197103).

65985485 is a wasteful number, since it uses less digits than its factorization.

65985485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13197102.

The product of its digits is 1728000, while the sum is 50.

The square root of 65985485 is about 8123.1450190182. The cubic root of 65985485 is about 404.0943743352.

The spelling of 65985485 in words is "sixty-five million, nine hundred eighty-five thousand, four hundred eighty-five".