257055312144271 has 4 divisors (see below), whose sum is σ = 257218108417000. Its totient is φ = 256892515871544.

The previous prime is 257055312144251. The next prime is 257055312144283. The reversal of 257055312144271 is 172441213550752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 257055312144271 - 2³¹ = 257053164660623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257055312144251) 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, 81398133996 + ... + 81398137153.

It is an arithmetic number, because the mean of its divisors is an integer number (64304527104250).

Almost surely, 2^{257055312144271} is an apocalyptic number.

257055312144271 is a deficient number, since it is larger than the sum of its proper divisors (162796272729).

257055312144271 is a wasteful number, since it uses less digits than its factorization.

257055312144271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162796272728.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 257055312144271 in words is "two hundred fifty-seven trillion, fifty-five billion, three hundred twelve million, one hundred forty-four thousand, two hundred seventy-one".