6554561831 has 2 divisors, whose sum is σ = 6554561832. Its totient is φ = 6554561830.

The previous prime is 6554561789. The next prime is 6554561851. The reversal of 6554561831 is 1381654556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6554561831 - 2¹⁰ = 6554560807 is a prime.

It is a super-2 number, since 2×6554561831² = 85924561592804145122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6554561851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3277280915 + 3277280916.

It is an arithmetic number, because the mean of its divisors is an integer number (3277280916).

Almost surely, 2^6554561831 is an apocalyptic number.

6554561831 is a deficient number, since it is larger than the sum of its proper divisors (1).

6554561831 is an equidigital number, since it uses as much as digits as its factorization.

6554561831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 44.

The square root of 6554561831 is about 80960.2484618223. The cubic root of 6554561831 is about 1871.4628978120.

The spelling of 6554561831 in words is "six billion, five hundred fifty-four million, five hundred sixty-one thousand, eight hundred thirty-one".