65520032 has 12 divisors (see below), whose sum is σ = 128992626. Its totient is φ = 32760000.

The previous prime is 65520011. The next prime is 65520041. The reversal of 65520032 is 23002556.

It is a happy number.

65520032 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 only one way, i.e., 35093776 + 30426256 = 5924^2 + 5516^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1023719 + ... + 1023782.

Almost surely, 2^65520032 is an apocalyptic number.

It is an amenable number.

65520032 is a deficient number, since it is larger than the sum of its proper divisors (63472594).

65520032 is a wasteful number, since it uses less digits than its factorization.

65520032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047511 (or 2047503 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 65520032 is about 8094.4445146038. Note that the first 3 decimals coincide. The cubic root of 65520032 is about 403.1419884834.

Adding to 65520032 its reverse (23002556), we get a palindrome (88522588).

The spelling of 65520032 in words is "sixty-five million, five hundred twenty thousand, thirty-two".