32225281 has 4 divisors (see below), whose sum is σ = 35154864. Its totient is φ = 29295700.

The previous prime is 32225279. The next prime is 32225317. The reversal of 32225281 is 18252223.

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 32225281 - 2¹ = 32225279 is a prime.

It is a super-2 number, since 2×32225281² = 2076937471057922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32225201) 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, 1464775 + ... + 1464796.

It is an arithmetic number, because the mean of its divisors is an integer number (8788716).

Almost surely, 2^32225281 is an apocalyptic number.

It is an amenable number.

32225281 is a deficient number, since it is larger than the sum of its proper divisors (2929583).

32225281 is a wasteful number, since it uses less digits than its factorization.

32225281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929582.

The product of its digits is 1920, while the sum is 25.

The square root of 32225281 is about 5676.7315420055. The cubic root of 32225281 is about 318.2234924041.

The spelling of 32225281 in words is "thirty-two million, two hundred twenty-five thousand, two hundred eighty-one".