53609645 has 8 divisors (see below), whose sum is σ = 64479456. Its totient is φ = 42789136.

The previous prime is 53609597. The next prime is 53609651. The reversal of 53609645 is 54690635.

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 53609645 - 2¹⁴ = 53593261 is a prime.

It is a super-3 number, since 3×53609645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53609599 and 53609608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9887 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (8059932).

Almost surely, 2^53609645 is an apocalyptic number.

It is an amenable number.

53609645 is a deficient number, since it is larger than the sum of its proper divisors (10869811).

53609645 is a wasteful number, since it uses less digits than its factorization.

53609645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24651.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 53609645 is about 7321.8607607629. The cubic root of 53609645 is about 377.0633402571.

The spelling of 53609645 in words is "fifty-three million, six hundred nine thousand, six hundred forty-five".