255684974351 has 2 divisors, whose sum is σ = 255684974352. Its totient is φ = 255684974350.

The previous prime is 255684974341. The next prime is 255684974459. The reversal of 255684974351 is 153479486552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255684974351 is a prime.

It is a super-2 number, since 2×255684974351² (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 (255684974341) by changing a digit.

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, 127842487175 + 127842487176.

It is an arithmetic number, because the mean of its divisors is an integer number (127842487176).

Almost surely, 2^255684974351 is an apocalyptic number.

255684974351 is a deficient number, since it is larger than the sum of its proper divisors (1).

255684974351 is an equidigital number, since it uses as much as digits as its factorization.

255684974351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000, while the sum is 59.

The spelling of 255684974351 in words is "two hundred fifty-five billion, six hundred eighty-four million, nine hundred seventy-four thousand, three hundred fifty-one".