65532001 has 4 divisors (see below), whose sum is σ = 66361600. Its totient is φ = 64702404.

The previous prime is 65531989. The next prime is 65532011. The reversal of 65532001 is 10023556.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65532001 - 2¹⁵ = 65499233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65532011) 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, 414681 + ... + 414838.

It is an arithmetic number, because the mean of its divisors is an integer number (16590400).

Almost surely, 2^65532001 is an apocalyptic number.

It is an amenable number.

65532001 is a deficient number, since it is larger than the sum of its proper divisors (829599).

65532001 is an equidigital number, since it uses as much as digits as its factorization.

65532001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829598.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 65532001 is about 8095.1838150841. The cubic root of 65532001 is about 403.1665352392.

Adding to 65532001 its reverse (10023556), we get a palindrome (75555557).

The spelling of 65532001 in words is "sixty-five million, five hundred thirty-two thousand, one".