255417023677 has 2 divisors, whose sum is σ = 255417023678. Its totient is φ = 255417023676.

The previous prime is 255417023671. The next prime is 255417023773. The reversal of 255417023677 is 776320714552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223378171641 + 32038852036 = 472629^2 + 178994^2 .

It is a cyclic number.

It is not a de Polignac number, because 255417023677 - 2²⁷ = 255282805949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255417023677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255417023671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127708511838 + 127708511839.

It is an arithmetic number, because the mean of its divisors is an integer number (127708511839).

Almost surely, 2^255417023677 is an apocalyptic number.

It is an amenable number.

255417023677 is a deficient number, since it is larger than the sum of its proper divisors (1).

255417023677 is an equidigital number, since it uses as much as digits as its factorization.

255417023677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 255417023677 in words is "two hundred fifty-five billion, four hundred seventeen million, twenty-three thousand, six hundred seventy-seven".