5663215231 has 4 divisors (see below), whose sum is σ = 5663871864. Its totient is φ = 5662558600.

The previous prime is 5663215157. The next prime is 5663215331. The reversal of 5663215231 is 1325123665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325123665 = 5 ⋅265024733.

It is a cyclic number.

It is not a de Polignac number, because 5663215231 - 2²¹ = 5661118079 is a prime.

It is a super-2 number, since 2×5663215231² = 64144013505260766722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5663215331) 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, 315205 + ... + 332686.

It is an arithmetic number, because the mean of its divisors is an integer number (1415967966).

Almost surely, 2^5663215231 is an apocalyptic number.

5663215231 is a deficient number, since it is larger than the sum of its proper divisors (656633).

5663215231 is an equidigital number, since it uses as much as digits as its factorization.

5663215231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656632.

The product of its digits is 32400, while the sum is 34.

The square root of 5663215231 is about 75254.3369580784. The cubic root of 5663215231 is about 1782.4650473145.

Adding to 5663215231 its reverse (1325123665), we get a palindrome (6988338896).

The spelling of 5663215231 in words is "five billion, six hundred sixty-three million, two hundred fifteen thousand, two hundred thirty-one".