4232525221 has 4 divisors (see below), whose sum is σ = 4233827200. Its totient is φ = 4231223244.

The previous prime is 4232525197. The next prime is 4232525237. The reversal of 4232525221 is 1225252324.

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 4232525221 - 2²³ = 4224136613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4232525221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4232525261) 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, 646101 + ... + 652618.

It is an arithmetic number, because the mean of its divisors is an integer number (1058456800).

Almost surely, 2^4232525221 is an apocalyptic number.

It is an amenable number.

4232525221 is a deficient number, since it is larger than the sum of its proper divisors (1301979).

4232525221 is a wasteful number, since it uses less digits than its factorization.

4232525221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301978.

The product of its digits is 9600, while the sum is 28.

The square root of 4232525221 is about 65057.8605627329. The cubic root of 4232525221 is about 1617.5827920868.

Adding to 4232525221 its reverse (1225252324), we get a palindrome (5457777545).

The spelling of 4232525221 in words is "four billion, two hundred thirty-two million, five hundred twenty-five thousand, two hundred twenty-one".