257363648 has 28 divisors (see below), whose sum is σ = 514621272. Its totient is φ = 127695360.

The previous prime is 257363621. The next prime is 257363651. The reversal of 257363648 is 846363752.

257363648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 257363599 and 257363608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6965 + ... + 23732.

Almost surely, 2^257363648 is an apocalyptic number.

It is an amenable number.

257363648 is a deficient number, since it is larger than the sum of its proper divisors (257257624).

257363648 is a wasteful number, since it uses less digits than its factorization.

257363648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30840 (or 30830 counting only the distinct ones).

The product of its digits is 725760, while the sum is 44.

The square root of 257363648 is about 16042.5574021102. The cubic root of 257363648 is about 636.0858499936.

The spelling of 257363648 in words is "two hundred fifty-seven million, three hundred sixty-three thousand, six hundred forty-eight".