53721353 has 8 divisors (see below), whose sum is σ = 64065408. Its totient is φ = 44044704.

The previous prime is 53721347. The next prime is 53721359. The reversal of 53721353 is 35312735.

53721353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53721347) and next prime (53721359).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53721353 - 2²⁰ = 52672777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53721359) 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 in 7 ways as a sum of consecutive naturals, for example, 166676 + ... + 166997.

It is an arithmetic number, because the mean of its divisors is an integer number (8008176).

Almost surely, 2^53721353 is an apocalyptic number.

It is an amenable number.

53721353 is a deficient number, since it is larger than the sum of its proper divisors (10344055).

53721353 is a wasteful number, since it uses less digits than its factorization.

53721353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333703.

The product of its digits is 9450, while the sum is 29.

The square root of 53721353 is about 7329.4851797381. The cubic root of 53721353 is about 377.3250578963.

The spelling of 53721353 in words is "fifty-three million, seven hundred twenty-one thousand, three hundred fifty-three".