52659661 has 4 divisors (see below), whose sum is σ = 53074432. Its totient is φ = 52244892.

The previous prime is 52659641. The next prime is 52659667. The reversal of 52659661 is 16695625.

52659661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52659661 - 2⁷ = 52659533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52659667) 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 in 3 ways as a sum of consecutive naturals, for example, 207195 + ... + 207448.

It is an arithmetic number, because the mean of its divisors is an integer number (13268608).

Almost surely, 2^52659661 is an apocalyptic number.

It is an amenable number.

52659661 is a deficient number, since it is larger than the sum of its proper divisors (414771).

52659661 is a wasteful number, since it uses less digits than its factorization.

52659661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414770.

The product of its digits is 97200, while the sum is 40.

The square root of 52659661 is about 7256.6976649162. The cubic root of 52659661 is about 374.8228164440.

The spelling of 52659661 in words is "fifty-two million, six hundred fifty-nine thousand, six hundred sixty-one".