257025006211 has 4 divisors (see below), whose sum is σ = 258329701872. Its totient is φ = 255720310552.

The previous prime is 257025006181. The next prime is 257025006229. The reversal of 257025006211 is 112600520752.

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 257025006211 - 2⁷ = 257025006083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257025006611) 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, 652347535 + ... + 652347928.

It is an arithmetic number, because the mean of its divisors is an integer number (64582425468).

Almost surely, 2^257025006211 is an apocalyptic number.

257025006211 is a deficient number, since it is larger than the sum of its proper divisors (1304695661).

257025006211 is a wasteful number, since it uses less digits than its factorization.

257025006211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304695660.

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 257025006211 its reverse (112600520752), we get a palindrome (369625526963).

The spelling of 257025006211 in words is "two hundred fifty-seven billion, twenty-five million, six thousand, two hundred eleven".