53644501 has 2 divisors, whose sum is σ = 53644502. Its totient is φ = 53644500.

The previous prime is 53644499. The next prime is 53644517. The reversal of 53644501 is 10544635.

53644501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34503876 + 19140625 = 5874^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 53644501 - 2¹ = 53644499 is a prime.

Together with 53644499, it forms a pair of twin primes.

It is equal to p_3206179 and since 53644501 and 3206179 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53644501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53644541) 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 as a sum of consecutive naturals, namely, 26822250 + 26822251.

It is an arithmetic number, because the mean of its divisors is an integer number (26822251).

Almost surely, 2^53644501 is an apocalyptic number.

53644501 is the 3276-th centered decagonal number.

It is an amenable number.

53644501 is a deficient number, since it is larger than the sum of its proper divisors (1).

53644501 is an equidigital number, since it uses as much as digits as its factorization.

53644501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 53644501 is about 7324.2406432339. The cubic root of 53644501 is about 377.1450424233.

It can be divided in two parts, 53644 and 501, that added together give a palindrome (54145).

The spelling of 53644501 in words is "fifty-three million, six hundred forty-four thousand, five hundred one".