53644386 has 8 divisors (see below), whose sum is σ = 107288784. Its totient is φ = 17881460.

The previous prime is 53644379. The next prime is 53644387. The reversal of 53644386 is 68344635.

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

53644386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (53644387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4470360 + ... + 4470371.

It is an arithmetic number, because the mean of its divisors is an integer number (13411098).

Almost surely, 2^53644386 is an apocalyptic number.

53644386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53644386 is a wasteful number, since it uses less digits than its factorization.

53644386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8940736.

The product of its digits is 207360, while the sum is 39.

The square root of 53644386 is about 7324.2327925865. The cubic root of 53644386 is about 377.1447729225.

The spelling of 53644386 in words is "fifty-three million, six hundred forty-four thousand, three hundred eighty-six".