53438323 has 4 divisors (see below), whose sum is σ = 54882640. Its totient is φ = 51994008.

The previous prime is 53438321. The next prime is 53438339. The reversal of 53438323 is 32383435.

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 53438323 - 2¹ = 53438321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53438321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722103 + ... + 722176.

It is an arithmetic number, because the mean of its divisors is an integer number (13720660).

Almost surely, 2^53438323 is an apocalyptic number.

53438323 is a deficient number, since it is larger than the sum of its proper divisors (1444317).

53438323 is a wasteful number, since it uses less digits than its factorization.

53438323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444316.

The product of its digits is 25920, while the sum is 31.

The square root of 53438323 is about 7310.1520504022. The cubic root of 53438323 is about 376.6612473007.

The spelling of 53438323 in words is "fifty-three million, four hundred thirty-eight thousand, three hundred twenty-three".