65609480 has 32 divisors (see below), whose sum is σ = 149650200. Its totient is φ = 25883136.

The previous prime is 65609449. The next prime is 65609483. The reversal of 65609480 is 8490656.

65609480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 60124516 + 5484964 = 7754^2 + 2342^2 .

It is not an unprimeable number, because it can be changed into a prime (65609483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8315 + ... + 14154.

Almost surely, 2^65609480 is an apocalyptic number.

It is an amenable number.

65609480 is an abundant number, since it is smaller than the sum of its proper divisors (84040720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65609480 is a wasteful number, since it uses less digits than its factorization.

65609480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22553 (or 22549 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 65609480 is about 8099.9679011710. The cubic root of 65609480 is about 403.3253616499.

The spelling of 65609480 in words is "sixty-five million, six hundred nine thousand, four hundred eighty".