53144646 has 32 divisors (see below), whose sum is σ = 112527360. Its totient is φ = 16703904.

The previous prime is 53144621. The next prime is 53144647. The reversal of 53144646 is 64644135.

53144646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144647) 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 15 ways as a sum of consecutive naturals, for example, 3931 + ... + 11033.

It is an arithmetic number, because the mean of its divisors is an integer number (3516480).

Almost surely, 2^53144646 is an apocalyptic number.

53144646 is an abundant number, since it is smaller than the sum of its proper divisors (59382714).

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

53144646 is a wasteful number, since it uses less digits than its factorization.

53144646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180.

The product of its digits is 34560, while the sum is 33.

The square root of 53144646 is about 7290.0374484635. The cubic root of 53144646 is about 375.9699830798.

The spelling of 53144646 in words is "fifty-three million, one hundred forty-four thousand, six hundred forty-six".