5631651013 has 4 divisors (see below), whose sum is σ = 5962924620. Its totient is φ = 5300377408.

The previous prime is 5631650989. The next prime is 5631651019. The reversal of 5631651013 is 3101561365.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4987608129 + 644042884 = 70623^2 + 25378^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631651013 - 2⁹ = 5631650501 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 (5631651019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165636778 + ... + 165636811.

It is an arithmetic number, because the mean of its divisors is an integer number (1490731155).

Almost surely, 2^5631651013 is an apocalyptic number.

It is an amenable number.

5631651013 is a deficient number, since it is larger than the sum of its proper divisors (331273607).

5631651013 is a wasteful number, since it uses less digits than its factorization.

5631651013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331273606.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 5631651013 is about 75044.3269874546. The cubic root of 5631651013 is about 1779.1473226367.

The spelling of 5631651013 in words is "five billion, six hundred thirty-one million, six hundred fifty-one thousand, thirteen".