53646329 has 16 divisors (see below), whose sum is σ = 61889280. Its totient is φ = 45988560.

The previous prime is 53646289. The next prime is 53646331. The reversal of 53646329 is 92364635.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53646329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53646292 and 53646301.

It is not an unprimeable number, because it can be changed into a prime (53640329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58694 + ... + 59600.

It is an arithmetic number, because the mean of its divisors is an integer number (3868080).

Almost surely, 2^53646329 is an apocalyptic number.

It is an amenable number.

53646329 is a deficient number, since it is larger than the sum of its proper divisors (8242951).

53646329 is a wasteful number, since it uses less digits than its factorization.

53646329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its digits is 116640, while the sum is 38.

The square root of 53646329 is about 7324.3654332645. The cubic root of 53646329 is about 377.1493262629.

The spelling of 53646329 in words is "fifty-three million, six hundred forty-six thousand, three hundred twenty-nine".