52721933 has 8 divisors (see below), whose sum is σ = 57578016. Its totient is φ = 47876400.

The previous prime is 52721881. The next prime is 52721939. The reversal of 52721933 is 33912725.

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

It is not a de Polignac number, because 52721933 - 2¹⁰ = 52720909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52721933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52721939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10835 + ... + 14927.

It is an arithmetic number, because the mean of its divisors is an integer number (7197252).

Almost surely, 2^52721933 is an apocalyptic number.

It is an amenable number.

52721933 is a deficient number, since it is larger than the sum of its proper divisors (4856083).

52721933 is a wasteful number, since it uses less digits than its factorization.

52721933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275.

The product of its digits is 11340, while the sum is 32.

The square root of 52721933 is about 7260.9870541132. The cubic root of 52721933 is about 374.9705055321.

The spelling of 52721933 in words is "fifty-two million, seven hundred twenty-one thousand, nine hundred thirty-three".