65551444 has 24 divisors (see below), whose sum is σ = 138004160. Its totient is φ = 26614656.

The previous prime is 65551433. The next prime is 65551459. The reversal of 65551444 is 44415556.

65551444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 61077 + ... + 62140.

Almost surely, 2^65551444 is an apocalyptic number.

It is an amenable number.

65551444 is an abundant number, since it is smaller than the sum of its proper divisors (72452716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65551444 is a wasteful number, since it uses less digits than its factorization.

65551444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123247 (or 123245 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 65551444 is about 8096.3846252510. The cubic root of 65551444 is about 403.2064037600.

The spelling of 65551444 in words is "sixty-five million, five hundred fifty-one thousand, four hundred forty-four".