257893353 has 12 divisors (see below), whose sum is σ = 374981568. Its totient is φ = 170789400.

The previous prime is 257893313. The next prime is 257893373. The reversal of 257893353 is 353398752.

It is not a de Polignac number, because 257893353 - 2⁹ = 257892841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257893299 and 257893308.

It is not an unprimeable number, because it can be changed into a prime (257893303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93525 + ... + 96242.

It is an arithmetic number, because the mean of its divisors is an integer number (31248464).

Almost surely, 2^257893353 is an apocalyptic number.

It is an amenable number.

257893353 is a deficient number, since it is larger than the sum of its proper divisors (117088215).

257893353 is a wasteful number, since it uses less digits than its factorization.

257893353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189924 (or 189921 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 257893353 is about 16059.0582849680. The cubic root of 257893353 is about 636.5219475288.

The spelling of 257893353 in words is "two hundred fifty-seven million, eight hundred ninety-three thousand, three hundred fifty-three".