255842558357 has 2 divisors, whose sum is σ = 255842558358. Its totient is φ = 255842558356.

The previous prime is 255842558353. The next prime is 255842558401. The reversal of 255842558357 is 753855248552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243567912676 + 12274645681 = 493526^2 + 110791^2 .

It is a cyclic number.

It is not a de Polignac number, because 255842558357 - 2² = 255842558353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255842558296 and 255842558305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255842558353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127921279178 + 127921279179.

It is an arithmetic number, because the mean of its divisors is an integer number (127921279179).

Almost surely, 2^255842558357 is an apocalyptic number.

It is an amenable number.

255842558357 is a deficient number, since it is larger than the sum of its proper divisors (1).

255842558357 is an equidigital number, since it uses as much as digits as its factorization.

255842558357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200000, while the sum is 59.

The spelling of 255842558357 in words is "two hundred fifty-five billion, eight hundred forty-two million, five hundred fifty-eight thousand, three hundred fifty-seven".