53444445 has 16 divisors (see below), whose sum is σ = 85626240. Its totient is φ = 28465344.

The previous prime is 53444423. The next prime is 53444459. The reversal of 53444445 is 54444435.

It is a happy number.

It is not a de Polignac number, because 53444445 - 2⁸ = 53444189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11847 + ... + 15723.

It is an arithmetic number, because the mean of its divisors is an integer number (5351640).

Almost surely, 2^53444445 is an apocalyptic number.

It is an amenable number.

53444445 is a deficient number, since it is larger than the sum of its proper divisors (32181795).

53444445 is a wasteful number, since it uses less digits than its factorization.

53444445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804.

The product of its digits is 76800, while the sum is 33.

The square root of 53444445 is about 7310.5707711505. The cubic root of 53444445 is about 376.6756304373.

The spelling of 53444445 in words is "fifty-three million, four hundred forty-four thousand, four hundred forty-five".