4454221551 has 16 divisors (see below), whose sum is σ = 6397087200. Its totient is φ = 2740510080.

The previous prime is 4454221543. The next prime is 4454221559. The reversal of 4454221551 is 1551224544.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4454221543) and next prime (4454221559).

It is not a de Polignac number, because 4454221551 - 2³ = 4454221543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4454221559) 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, 278841 + ... + 294381.

It is an arithmetic number, because the mean of its divisors is an integer number (399817950).

Almost surely, 2^4454221551 is an apocalyptic number.

4454221551 is a deficient number, since it is larger than the sum of its proper divisors (1942865649).

4454221551 is a wasteful number, since it uses less digits than its factorization.

4454221551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22906.

The product of its digits is 32000, while the sum is 33.

The square root of 4454221551 is about 66739.9546823340. The cubic root of 4454221551 is about 1645.3461208165.

The spelling of 4454221551 in words is "four billion, four hundred fifty-four million, two hundred twenty-one thousand, five hundred fifty-one".