257853893 has 16 divisors (see below), whose sum is σ = 286832832. Its totient is φ = 229824000.

The previous prime is 257853889. The next prime is 257853901. The reversal of 257853893 is 398358752.

It is a cyclic number.

It is not a de Polignac number, because 257853893 - 2² = 257853889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257853803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382805 + ... + 383477.

It is an arithmetic number, because the mean of its divisors is an integer number (17927052).

Almost surely, 2^257853893 is an apocalyptic number.

It is an amenable number.

257853893 is a deficient number, since it is larger than the sum of its proper divisors (28978939).

257853893 is a wasteful number, since it uses less digits than its factorization.

257853893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its digits is 1814400, while the sum is 50.

The square root of 257853893 is about 16057.8296478696. The cubic root of 257853893 is about 636.4894813473.

The spelling of 257853893 in words is "two hundred fifty-seven million, eight hundred fifty-three thousand, eight hundred ninety-three".