255034221443831 has 2 divisors, whose sum is σ = 255034221443832. Its totient is φ = 255034221443830.

The previous prime is 255034221443791. The next prime is 255034221443941. The reversal of 255034221443831 is 138344122430552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255034221443831 is a prime.

It is a super-2 number, since 2×255034221443831² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255034221449831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127517110721915 + 127517110721916.

It is an arithmetic number, because the mean of its divisors is an integer number (127517110721916).

Almost surely, 2^{255034221443831} is an apocalyptic number.

255034221443831 is a deficient number, since it is larger than the sum of its proper divisors (1).

255034221443831 is an equidigital number, since it uses as much as digits as its factorization.

255034221443831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 255034221443831 in words is "two hundred fifty-five trillion, thirty-four billion, two hundred twenty-one million, four hundred forty-three thousand, eight hundred thirty-one".