257283883273 has 4 divisors (see below), whose sum is σ = 257307587280. Its totient is φ = 257260179268.

The previous prime is 257283883243. The next prime is 257283883277. The reversal of 257283883273 is 372388382752.

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 257283883273 - 2³³ = 248693948681 is a prime.

It is a Smith number, since the sum of its digits (58) 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 not an unprimeable number, because it can be changed into a prime (257283883277) 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 in 3 ways as a sum of consecutive naturals, for example, 11835715 + ... + 11857432.

It is an arithmetic number, because the mean of its divisors is an integer number (64326896820).

Almost surely, 2^257283883273 is an apocalyptic number.

It is an amenable number.

257283883273 is a deficient number, since it is larger than the sum of its proper divisors (23704007).

257283883273 is a wasteful number, since it uses less digits than its factorization.

257283883273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23704006.

The product of its digits is 27095040, while the sum is 58.

The spelling of 257283883273 in words is "two hundred fifty-seven billion, two hundred eighty-three million, eight hundred eighty-three thousand, two hundred seventy-three".