64553445 has 24 divisors (see below), whose sum is σ = 122065632. Its totient is φ = 31298400.

The previous prime is 64553353. The next prime is 64553453. The reversal of 64553445 is 54435546.

64553445 is a `hidden beast` number, since 64 + 553 + 4 + 45 = 666.

64553445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64553445 - 2²⁰ = 63504869 is a prime.

It is a super-2 number, since 2×64553445² = 8334294522736050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 64711 + ... + 65700.

It is an arithmetic number, because the mean of its divisors is an integer number (5086068).

Almost surely, 2^64553445 is an apocalyptic number.

It is an amenable number.

64553445 is a deficient number, since it is larger than the sum of its proper divisors (57512187).

64553445 is a wasteful number, since it uses less digits than its factorization.

64553445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130433 (or 130430 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 64553445 is about 8034.5158534911. The cubic root of 64553445 is about 401.1497027098.

The spelling of 64553445 in words is "sixty-four million, five hundred fifty-three thousand, four hundred forty-five".