53143641 has 16 divisors (see below), whose sum is σ = 81272320. Its totient is φ = 34285680.

The previous prime is 53143637. The next prime is 53143679. The reversal of 53143641 is 14634135.

53143641 is a `hidden beast` number, since 5 + 3 + 14 + 3 + 641 = 666.

53143641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53143641 - 2² = 53143637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53143691) 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, 30910 + ... + 32583.

It is an arithmetic number, because the mean of its divisors is an integer number (5079520).

Almost surely, 2^53143641 is an apocalyptic number.

It is an amenable number.

53143641 is a deficient number, since it is larger than the sum of its proper divisors (28128679).

53143641 is a wasteful number, since it uses less digits than its factorization.

53143641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63533 (or 63527 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 53143641 is about 7289.9685184505. The cubic root of 53143641 is about 375.9676131188.

Adding to 53143641 its reverse (14634135), we get a palindrome (67777776).

The spelling of 53143641 in words is "fifty-three million, one hundred forty-three thousand, six hundred forty-one".