53612609 has 8 divisors (see below), whose sum is σ = 57748992. Its totient is φ = 49626720.

The previous prime is 53612591. The next prime is 53612641. The reversal of 53612609 is 90621635.

It is a happy number.

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 53612609 - 2²⁰ = 52564033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53612659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36884 + ... + 38309.

It is an arithmetic number, because the mean of its divisors is an integer number (7218624).

Almost surely, 2^53612609 is an apocalyptic number.

It is an amenable number.

53612609 is a deficient number, since it is larger than the sum of its proper divisors (4136383).

53612609 is a wasteful number, since it uses less digits than its factorization.

53612609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75247.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 53612609 is about 7322.0631655292. The cubic root of 53612609 is about 377.0702892252.

The spelling of 53612609 in words is "fifty-three million, six hundred twelve thousand, six hundred nine".