42556000831 has 2 divisors, whose sum is σ = 42556000832. Its totient is φ = 42556000830.

The previous prime is 42556000793. The next prime is 42556000849. The reversal of 42556000831 is 13800065524.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42556000831 is a prime.

It is a super-2 number, since 2×42556000831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is a weakly prime.

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 as a sum of consecutive naturals, namely, 21278000415 + 21278000416.

It is an arithmetic number, because the mean of its divisors is an integer number (21278000416).

Almost surely, 2^42556000831 is an apocalyptic number.

42556000831 is a deficient number, since it is larger than the sum of its proper divisors (1).

42556000831 is an equidigital number, since it uses as much as digits as its factorization.

42556000831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 42556000831 in words is "forty-two billion, five hundred fifty-six million, eight hundred thirty-one", and thus it is an aban number.