257825010827 has 4 divisors (see below), whose sum is σ = 259679867160. Its totient is φ = 255970154496.

The previous prime is 257825010791. The next prime is 257825010829. The reversal of 257825010827 is 728010528752.

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 257825010827 - 2⁸ = 257825010571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257825010829) 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, 927427958 + ... + 927428235.

It is an arithmetic number, because the mean of its divisors is an integer number (64919966790).

Almost surely, 2^257825010827 is an apocalyptic number.

257825010827 is a deficient number, since it is larger than the sum of its proper divisors (1854856333).

257825010827 is a wasteful number, since it uses less digits than its factorization.

257825010827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854856332.

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 257825010827 in words is "two hundred fifty-seven billion, eight hundred twenty-five million, ten thousand, eight hundred twenty-seven".