5616806831 has 4 divisors (see below), whose sum is σ = 5616964152. Its totient is φ = 5616649512.

The previous prime is 5616806813. The next prime is 5616806843. The reversal of 5616806831 is 1386086165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5616806831 is a prime.

It is a super-2 number, since 2×5616806831² = 63097037953536525122, 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 (5616806801) 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, 3500 + ... + 106046.

It is an arithmetic number, because the mean of its divisors is an integer number (1404241038).

Almost surely, 2^5616806831 is an apocalyptic number.

5616806831 is a deficient number, since it is larger than the sum of its proper divisors (157321).

5616806831 is a wasteful number, since it uses less digits than its factorization.

5616806831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157320.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 5616806831 is about 74945.3589690516. The cubic root of 5616806831 is about 1777.5827592499.

The spelling of 5616806831 in words is "five billion, six hundred sixteen million, eight hundred six thousand, eight hundred thirty-one".