32640501 has 4 divisors (see below), whose sum is σ = 43520672. Its totient is φ = 21760332.

The previous prime is 32640481. The next prime is 32640529. The reversal of 32640501 is 10504623.

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 not a de Polignac number, because 32640501 - 2⁶ = 32640437 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 (32640581) 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, 5440081 + ... + 5440086.

It is an arithmetic number, because the mean of its divisors is an integer number (10880168).

Almost surely, 2^32640501 is an apocalyptic number.

It is an amenable number.

32640501 is a deficient number, since it is larger than the sum of its proper divisors (10880171).

32640501 is a wasteful number, since it uses less digits than its factorization.

32640501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880170.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 32640501 is about 5713.1865889362. The cubic root of 32640501 is about 319.5844247301.

The spelling of 32640501 in words is "thirty-two million, six hundred forty thousand, five hundred one".