255623073257 has 8 divisors (see below), whose sum is σ = 264454233600. Its totient is φ = 246793017744.

The previous prime is 255623073241. The next prime is 255623073263. The reversal of 255623073257 is 752370326552.

It is a happy number.

255623073257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255623073257 - 2⁴ = 255623073241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255623073227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208994 + ... + 744932.

It is an arithmetic number, because the mean of its divisors is an integer number (33056779200).

Almost surely, 2^255623073257 is an apocalyptic number.

It is an amenable number.

255623073257 is a deficient number, since it is larger than the sum of its proper divisors (8831160343).

255623073257 is a wasteful number, since it uses less digits than its factorization.

255623073257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552415.

The product of its (nonzero) digits is 2646000, while the sum is 47.

The spelling of 255623073257 in words is "two hundred fifty-five billion, six hundred twenty-three million, seventy-three thousand, two hundred fifty-seven".