4252568221 has 8 divisors (see below), whose sum is σ = 4639640544. Its totient is φ = 3865575120.

The previous prime is 4252568219. The next prime is 4252568263. The reversal of 4252568221 is 1228652524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4252568221 - 2¹ = 4252568219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4252568321) by changing a digit.

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, 181071 + ... + 203203.

It is an arithmetic number, because the mean of its divisors is an integer number (579955068).

Almost surely, 2^4252568221 is an apocalyptic number.

It is an amenable number.

4252568221 is a deficient number, since it is larger than the sum of its proper divisors (387072323).

4252568221 is a wasteful number, since it uses less digits than its factorization.

4252568221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39611.

The product of its digits is 76800, while the sum is 37.

The square root of 4252568221 is about 65211.7184331160. The cubic root of 4252568221 is about 1620.1321109809.

The spelling of 4252568221 in words is "four billion, two hundred fifty-two million, five hundred sixty-eight thousand, two hundred twenty-one".