53743561 has 3 divisors (see below), whose sum is σ = 53750893. Its totient is φ = 53736230.

The previous prime is 53743541. The next prime is 53743577. The reversal of 53743561 is 16534735.

The square root of 53743561 is 7331.

It is a perfect power (a square), and thus also a powerful number.

53743561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 53743561 - 2⁹ = 53743049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53743531) 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 2 ways as a sum of consecutive naturals, for example, 3666 + ... + 10996.

Almost surely, 2^53743561 is an apocalyptic number.

53743561 is the 7331-st square number.

53743561 is the 3666-th centered octagonal number.

It is an amenable number.

53743561 is a deficient number, since it is larger than the sum of its proper divisors (7332).

53743561 is an frugal number, since it uses more digits than its factorization.

53743561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14662 (or 7331 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The cubic root of 53743561 is about 377.3770451725.

The spelling of 53743561 in words is "fifty-three million, seven hundred forty-three thousand, five hundred sixty-one".