255235334381 has 2 divisors, whose sum is σ = 255235334382. Its totient is φ = 255235334380.

The previous prime is 255235334287. The next prime is 255235334503. The reversal of 255235334381 is 183433532552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165514717225 + 89720617156 = 406835^2 + 299534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255235334381 is a prime.

It is a super-2 number, since 2×255235334381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255235331381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127617667190 + 127617667191.

It is an arithmetic number, because the mean of its divisors is an integer number (127617667191).

Almost surely, 2^255235334381 is an apocalyptic number.

It is an amenable number.

255235334381 is a deficient number, since it is larger than the sum of its proper divisors (1).

255235334381 is an equidigital number, since it uses as much as digits as its factorization.

255235334381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296000, while the sum is 44.

The spelling of 255235334381 in words is "two hundred fifty-five billion, two hundred thirty-five million, three hundred thirty-four thousand, three hundred eighty-one".