53450447 has 4 divisors (see below), whose sum is σ = 54459000. Its totient is φ = 52441896.

The previous prime is 53450437. The next prime is 53450461. The reversal of 53450447 is 74405435.

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 53450447 - 2¹⁴ = 53434063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450437) 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, 504197 + ... + 504302.

It is an arithmetic number, because the mean of its divisors is an integer number (13614750).

Almost surely, 2^53450447 is an apocalyptic number.

53450447 is a deficient number, since it is larger than the sum of its proper divisors (1008553).

53450447 is a wasteful number, since it uses less digits than its factorization.

53450447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008552.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 53450447 is about 7310.9812610894. The cubic root of 53450447 is about 376.6897305775.

The spelling of 53450447 in words is "fifty-three million, four hundred fifty thousand, four hundred forty-seven".