52633921 has 8 divisors (see below), whose sum is σ = 55804680. Its totient is φ = 49471488.

The previous prime is 52633909. The next prime is 52633961. The reversal of 52633921 is 12933625.

It can be written as a sum of positive squares in 4 ways, for example, as 36433296 + 16200625 = 6036^2 + 4025^2 .

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 52633921 - 2⁹ = 52633409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52633901) 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, 15025 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (6975585).

Almost surely, 2^52633921 is an apocalyptic number.

It is an amenable number.

52633921 is a deficient number, since it is larger than the sum of its proper divisors (3170759).

52633921 is a wasteful number, since it uses less digits than its factorization.

52633921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163.

The product of its digits is 9720, while the sum is 31.

The square root of 52633921 is about 7254.9239141427. The cubic root of 52633921 is about 374.7617354602.

The spelling of 52633921 in words is "fifty-two million, six hundred thirty-three thousand, nine hundred twenty-one".