255477051593 has 2 divisors, whose sum is σ = 255477051594. Its totient is φ = 255477051592.

The previous prime is 255477051553. The next prime is 255477051601. The reversal of 255477051593 is 395150774552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251634663424 + 3842388169 = 501632^2 + 61987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255477051593 is a prime.

It is not a weakly prime, because it can be changed into another prime (255477051553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127738525796 + 127738525797.

It is an arithmetic number, because the mean of its divisors is an integer number (127738525797).

Almost surely, 2^255477051593 is an apocalyptic number.

It is an amenable number.

255477051593 is a deficient number, since it is larger than the sum of its proper divisors (1).

255477051593 is an equidigital number, since it uses as much as digits as its factorization.

255477051593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6615000, while the sum is 53.

The spelling of 255477051593 in words is "two hundred fifty-five billion, four hundred seventy-seven million, fifty-one thousand, five hundred ninety-three".