255550357 has 2 divisors, whose sum is σ = 255550358. Its totient is φ = 255550356.

The previous prime is 255550303. The next prime is 255550367. The reversal of 255550357 is 753055552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252142641 + 3407716 = 15879^2 + 1846^2 .

It is a cyclic number.

It is not a de Polignac number, because 255550357 - 2¹⁵ = 255517589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255550367) 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, 127775178 + 127775179.

It is an arithmetic number, because the mean of its divisors is an integer number (127775179).

Almost surely, 2^255550357 is an apocalyptic number.

It is an amenable number.

255550357 is a deficient number, since it is larger than the sum of its proper divisors (1).

255550357 is an equidigital number, since it uses as much as digits as its factorization.

255550357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131250, while the sum is 37.

The square root of 255550357 is about 15985.9424808173. The cubic root of 255550357 is about 634.5884509599.

The spelling of 255550357 in words is "two hundred fifty-five million, five hundred fifty thousand, three hundred fifty-seven".