4455045521 has 4 divisors (see below), whose sum is σ = 4455432192. Its totient is φ = 4454658852.

The previous prime is 4455045503. The next prime is 4455045523. The reversal of 4455045521 is 1255405544.

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 4455045521 - 2⁶ = 4455045457 is a prime.

It is a super-2 number, since 2×4455045521² = 39694861188364322882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4455045523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175505 + ... + 199278.

It is an arithmetic number, because the mean of its divisors is an integer number (1113858048).

Almost surely, 2^4455045521 is an apocalyptic number.

It is an amenable number.

4455045521 is a deficient number, since it is larger than the sum of its proper divisors (386671).

4455045521 is a wasteful number, since it uses less digits than its factorization.

4455045521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386670.

The product of its (nonzero) digits is 80000, while the sum is 35.

The square root of 4455045521 is about 66746.1273857892. The cubic root of 4455045521 is about 1645.4475700626.

The spelling of 4455045521 in words is "four billion, four hundred fifty-five million, forty-five thousand, five hundred twenty-one".