53354643 has 4 divisors (see below), whose sum is σ = 71139528. Its totient is φ = 35569760.

The previous prime is 53354633. The next prime is 53354659. The reversal of 53354643 is 34645335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53354643 - 2⁵ = 53354611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53354633) 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, 8892438 + ... + 8892443.

It is an arithmetic number, because the mean of its divisors is an integer number (17784882).

Almost surely, 2^53354643 is an apocalyptic number.

53354643 is a deficient number, since it is larger than the sum of its proper divisors (17784885).

53354643 is a wasteful number, since it uses less digits than its factorization.

53354643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17784884.

The product of its digits is 64800, while the sum is 33.

The square root of 53354643 is about 7304.4262608366. The cubic root of 53354643 is about 376.4645377872.

Adding to 53354643 its reverse (34645335), we get a palindrome (87999978).

The spelling of 53354643 in words is "fifty-three million, three hundred fifty-four thousand, six hundred forty-three".