5230203661 has 4 divisors (see below), whose sum is σ = 5230471900. Its totient is φ = 5229935424.

The previous prime is 5230203631. The next prime is 5230203691. The reversal of 5230203661 is 1663020325.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5230203631) and next prime (5230203691).

It can be written as a sum of positive squares in 2 ways, for example, as 3683276100 + 1546927561 = 60690^2 + 39331^2 .

It is a cyclic number.

It is not a de Polignac number, because 5230203661 - 2¹⁵ = 5230170893 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 (5230203631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102366 + ... + 144703.

It is an arithmetic number, because the mean of its divisors is an integer number (1307617975).

Almost surely, 2^5230203661 is an apocalyptic number.

It is an amenable number.

5230203661 is a deficient number, since it is larger than the sum of its proper divisors (268239).

5230203661 is a wasteful number, since it uses less digits than its factorization.

5230203661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268238.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 5230203661 is about 72320.1469923838. The cubic root of 5230203661 is about 1735.8260438796.

Adding to 5230203661 its reverse (1663020325), we get a palindrome (6893223986).

The spelling of 5230203661 in words is "five billion, two hundred thirty million, two hundred three thousand, six hundred sixty-one".