2352559661 has 4 divisors (see below), whose sum is σ = 2359667424. Its totient is φ = 2345451900.

The previous prime is 2352559597. The next prime is 2352559691. The reversal of 2352559661 is 1669552532.

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 2352559661 - 2⁶ = 2352559597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2352559691) 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, 3553385 + ... + 3554046.

It is an arithmetic number, because the mean of its divisors is an integer number (589916856).

Almost surely, 2^2352559661 is an apocalyptic number.

It is an amenable number.

2352559661 is a deficient number, since it is larger than the sum of its proper divisors (7107763).

2352559661 is an equidigital number, since it uses as much as digits as its factorization.

2352559661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107762.

The product of its digits is 486000, while the sum is 44.

The square root of 2352559661 is about 48503.1922763853. The cubic root of 2352559661 is about 1329.9854259997.

The spelling of 2352559661 in words is "two billion, three hundred fifty-two million, five hundred fifty-nine thousand, six hundred sixty-one".