53450723 has 4 divisors (see below), whose sum is σ = 53482968. Its totient is φ = 53418480.

The previous prime is 53450713. The next prime is 53450753. The reversal of 53450723 is 32705435.

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 53450723 - 2¹⁸ = 53188579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53450713) 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, 13493 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (13370742).

Almost surely, 2^53450723 is an apocalyptic number.

53450723 is a deficient number, since it is larger than the sum of its proper divisors (32245).

53450723 is a wasteful number, since it uses less digits than its factorization.

53450723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32244.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 53450723 is about 7311.0001367802. Note that the first 3 decimals coincide. The cubic root of 53450723 is about 376.6903789425.

The spelling of 53450723 in words is "fifty-three million, four hundred fifty thousand, seven hundred twenty-three".