53723438 has 4 divisors (see below), whose sum is σ = 80585160. Its totient is φ = 26861718.

The previous prime is 53723437. The next prime is 53723443. The reversal of 53723438 is 83432735.

53723438 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.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53723398 and 53723407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53723437) 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 as a sum of consecutive naturals, namely, 13430858 + ... + 13430861.

It is an arithmetic number, because the mean of its divisors is an integer number (20146290).

Almost surely, 2^53723438 is an apocalyptic number.

53723438 is a deficient number, since it is larger than the sum of its proper divisors (26861722).

53723438 is a wasteful number, since it uses less digits than its factorization.

53723438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26861721.

The product of its digits is 60480, while the sum is 35.

The square root of 53723438 is about 7329.6274120858. The cubic root of 53723438 is about 377.3299393355.

The spelling of 53723438 in words is "fifty-three million, seven hundred twenty-three thousand, four hundred thirty-eight".