53865445 has 8 divisors (see below), whose sum is σ = 66723840. Its totient is φ = 41702160.

The previous prime is 53865443. The next prime is 53865457. The reversal of 53865445 is 54456835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53865445 - 2¹ = 53865443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53865398 and 53865407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53865443) 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 7 ways as a sum of consecutive naturals, for example, 173605 + ... + 173914.

It is an arithmetic number, because the mean of its divisors is an integer number (8340480).

Almost surely, 2^53865445 is an apocalyptic number.

It is an amenable number.

53865445 is a deficient number, since it is larger than the sum of its proper divisors (12858395).

53865445 is a wasteful number, since it uses less digits than its factorization.

53865445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347555.

The product of its digits is 288000, while the sum is 40.

The square root of 53865445 is about 7339.3082099064. The cubic root of 53865445 is about 377.6621118567.

The spelling of 53865445 in words is "fifty-three million, eight hundred sixty-five thousand, four hundred forty-five".