255857201547673 has 4 divisors (see below), whose sum is σ = 279116947142928. Its totient is φ = 232597455952420.

The previous prime is 255857201547637. The next prime is 255857201547697. The reversal of 255857201547673 is 376745102758552.

255857201547673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255857201547673 - 2¹³ = 255857201539481 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255857201547599 and 255857201547608.

It is not an unprimeable number, because it can be changed into a prime (255857201547613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11629872797611 + ... + 11629872797632.

It is an arithmetic number, because the mean of its divisors is an integer number (69779236785732).

Almost surely, 2^{255857201547673} is an apocalyptic number.

It is an amenable number.

255857201547673 is a deficient number, since it is larger than the sum of its proper divisors (23259745595255).

255857201547673 is a wasteful number, since it uses less digits than its factorization.

255857201547673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23259745595254.

The product of its (nonzero) digits is 493920000, while the sum is 67.

The spelling of 255857201547673 in words is "two hundred fifty-five trillion, eight hundred fifty-seven billion, two hundred one million, five hundred forty-seven thousand, six hundred seventy-three".