4454221525 has 24 divisors (see below), whose sum is σ = 6045635624. Its totient is φ = 3235334400.

The previous prime is 4454221517. The next prime is 4454221531. The reversal of 4454221525 is 5251224544.

It can be written as a sum of positive squares in 12 ways, for example, as 1594325041 + 2859896484 = 39929^2 + 53478^2 .

It is not a de Polignac number, because 4454221525 - 2³ = 4454221517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92514 + ... + 132163.

Almost surely, 2^4454221525 is an apocalyptic number.

It is an amenable number.

4454221525 is a deficient number, since it is larger than the sum of its proper divisors (1591414099).

4454221525 is a wasteful number, since it uses less digits than its factorization.

4454221525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224761 (or 224756 counting only the distinct ones).

The product of its digits is 64000, while the sum is 34.

The square root of 4454221525 is about 66739.9544875482. The cubic root of 4454221525 is about 1645.3461176151.

The spelling of 4454221525 in words is "four billion, four hundred fifty-four million, two hundred twenty-one thousand, five hundred twenty-five".