53444080 has 20 divisors (see below), whose sum is σ = 124257672. Its totient is φ = 21377600.

The previous prime is 53444063. The next prime is 53444081. The reversal of 53444080 is 8044435.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53444081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333946 + ... + 334105.

Almost surely, 2^53444080 is an apocalyptic number.

It is an amenable number.

53444080 is an abundant number, since it is smaller than the sum of its proper divisors (70813592).

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

53444080 is a wasteful number, since it uses less digits than its factorization.

53444080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668064 (or 668058 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 53444080 is about 7310.5458072568. The cubic root of 53444080 is about 376.6747729305.

The spelling of 53444080 in words is "fifty-three million, four hundred forty-four thousand, eighty".