52660609 has 4 divisors (see below), whose sum is σ = 55432240. Its totient is φ = 49888980.

The previous prime is 52660603. The next prime is 52660637. The reversal of 52660609 is 90606625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52660609 - 2¹¹ = 52658561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52660603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385787 + ... + 1385824.

It is an arithmetic number, because the mean of its divisors is an integer number (13858060).

Almost surely, 2^52660609 is an apocalyptic number.

It is an amenable number.

52660609 is a deficient number, since it is larger than the sum of its proper divisors (2771631).

52660609 is a wasteful number, since it uses less digits than its factorization.

52660609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771630.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 52660609 is about 7256.7629835899. The cubic root of 52660609 is about 374.8250656666.

The spelling of 52660609 in words is "fifty-two million, six hundred sixty thousand, six hundred nine".