53644397 has 8 divisors (see below), whose sum is σ = 54460800. Its totient is φ = 52831584.

The previous prime is 53644387. The next prime is 53644417. The reversal of 53644397 is 79344635.

53644397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53644397 - 2⁸ = 53644141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644307) by changing a digit.

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, 48353 + ... + 49449.

It is an arithmetic number, because the mean of its divisors is an integer number (6807600).

Almost surely, 2^53644397 is an apocalyptic number.

It is an amenable number.

53644397 is a deficient number, since it is larger than the sum of its proper divisors (816403).

53644397 is a wasteful number, since it uses less digits than its factorization.

53644397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795.

The product of its digits is 272160, while the sum is 41.

The square root of 53644397 is about 7324.2335435184. The cubic root of 53644397 is about 377.1447987009.

The spelling of 53644397 in words is "fifty-three million, six hundred forty-four thousand, three hundred ninety-seven".