53626221 has 24 divisors (see below), whose sum is σ = 85943520. Its totient is φ = 31946400.

The previous prime is 53626207. The next prime is 53626247. The reversal of 53626221 is 12262635.

53626221 is a `hidden beast` number, since 5 + 36 + 2 + 622 + 1 = 666.

53626221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53626221 - 2⁷ = 53626093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53626121) 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 23 ways as a sum of consecutive naturals, for example, 1251 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (3580980).

Almost surely, 2^53626221 is an apocalyptic number.

It is an amenable number.

53626221 is a deficient number, since it is larger than the sum of its proper divisors (32317299).

53626221 is a wasteful number, since it uses less digits than its factorization.

53626221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9257 (or 9254 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 53626221 is about 7322.9926259692. The cubic root of 53626221 is about 377.1021986743.

Adding to 53626221 its reverse (12262635), we get a palindrome (65888856).

The spelling of 53626221 in words is "fifty-three million, six hundred twenty-six thousand, two hundred twenty-one".