257057511572611 has 4 divisors (see below), whose sum is σ = 257057862013912. Its totient is φ = 257057161131312.

The previous prime is 257057511572581. The next prime is 257057511572623. The reversal of 257057511572611 is 116275115750752.

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 257057511572611 - 2⁵ = 257057511572579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257057511578611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174118050 + ... + 175588183.

It is an arithmetic number, because the mean of its divisors is an integer number (64264465503478).

Almost surely, 2^{257057511572611} is an apocalyptic number.

257057511572611 is a deficient number, since it is larger than the sum of its proper divisors (350441301).

257057511572611 is an equidigital number, since it uses as much as digits as its factorization.

257057511572611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350441300.

The product of its (nonzero) digits is 5145000, while the sum is 55.

The spelling of 257057511572611 in words is "two hundred fifty-seven trillion, fifty-seven billion, five hundred eleven million, five hundred seventy-two thousand, six hundred eleven".