52632221 has 8 divisors (see below), whose sum is σ = 56064960. Its totient is φ = 49236928.

The previous prime is 52632193. The next prime is 52632247. The reversal of 52632221 is 12223625.

52632221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52632221 - 2¹⁸ = 52370077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52632421) 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, 6431 + ... + 12108.

It is an arithmetic number, because the mean of its divisors is an integer number (7008120).

Almost surely, 2^52632221 is an apocalyptic number.

It is an amenable number.

52632221 is a deficient number, since it is larger than the sum of its proper divisors (3432739).

52632221 is a wasteful number, since it uses less digits than its factorization.

52632221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18723.

The product of its digits is 1440, while the sum is 23.

The square root of 52632221 is about 7254.8067513890. The cubic root of 52632221 is about 374.7577006617.

Adding to 52632221 its reverse (12223625), we get a palindrome (64855846).

The spelling of 52632221 in words is "fifty-two million, six hundred thirty-two thousand, two hundred twenty-one".