65532920 has 32 divisors (see below), whose sum is σ = 151437600. Its totient is φ = 25504128.

The previous prime is 65532917. The next prime is 65532947. The reversal of 65532920 is 2923556.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20660 + ... + 23619.

It is an arithmetic number, because the mean of its divisors is an integer number (4732425).

Almost surely, 2^65532920 is an apocalyptic number.

It is an amenable number.

65532920 is an abundant number, since it is smaller than the sum of its proper divisors (85904680).

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

65532920 is a wasteful number, since it uses less digits than its factorization.

65532920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44327 (or 44323 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 65532920 is about 8095.2405770304. The cubic root of 65532920 is about 403.1684198569.

The spelling of 65532920 in words is "sixty-five million, five hundred thirty-two thousand, nine hundred twenty".