5231563641 has 12 divisors (see below), whose sum is σ = 7560774832. Its totient is φ = 3485829816.

The previous prime is 5231563639. The next prime is 5231563661. The reversal of 5231563641 is 1463651325.

5231563641 is a `hidden beast` number, since 5 + 2 + 3 + 1 + 5 + 6 + 3 + 641 = 666.

It is not a de Polignac number, because 5231563641 - 2¹ = 5231563639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5231563596 and 5231563605.

It is not an unprimeable number, because it can be changed into a prime (5231563661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138871 + ... + 172476.

Almost surely, 2^5231563641 is an apocalyptic number.

It is an amenable number.

5231563641 is a deficient number, since it is larger than the sum of its proper divisors (2329211191).

5231563641 is a wasteful number, since it uses less digits than its factorization.

5231563641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313220 (or 313217 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 5231563641 is about 72329.5488787259. The cubic root of 5231563641 is about 1735.9764831533.

The spelling of 5231563641 in words is "five billion, two hundred thirty-one million, five hundred sixty-three thousand, six hundred forty-one".