4221553441 has 16 divisors (see below), whose sum is σ = 5112008064. Its totient is φ = 3403240704.

The previous prime is 4221553367. The next prime is 4221553451. The reversal of 4221553441 is 1443551224.

It is a cyclic number.

It is not a de Polignac number, because 4221553441 - 2⁷ = 4221553313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221553451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169591 + ... + 192883.

It is an arithmetic number, because the mean of its divisors is an integer number (319500504).

Almost surely, 2^4221553441 is an apocalyptic number.

It is an amenable number.

4221553441 is a deficient number, since it is larger than the sum of its proper divisors (890454623).

4221553441 is a wasteful number, since it uses less digits than its factorization.

4221553441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24840.

The product of its digits is 19200, while the sum is 31.

The square root of 4221553441 is about 64973.4825986725. The cubic root of 4221553441 is about 1616.1838541565.

The spelling of 4221553441 in words is "four billion, two hundred twenty-one million, five hundred fifty-three thousand, four hundred forty-one".