257542448 has 10 divisors (see below), whose sum is σ = 498988524. Its totient is φ = 128771216.

The previous prime is 257542447. The next prime is 257542499. The reversal of 257542448 is 844245752.

It is a happy number.

257542448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×257542448² = 132656225043665408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257542447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8048186 + ... + 8048217.

Almost surely, 2^257542448 is an apocalyptic number.

It is an amenable number.

257542448 is a deficient number, since it is larger than the sum of its proper divisors (241446076).

257542448 is a wasteful number, since it uses less digits than its factorization.

257542448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16096411 (or 16096405 counting only the distinct ones).

The product of its digits is 358400, while the sum is 41.

The square root of 257542448 is about 16048.1291121426. The cubic root of 257542448 is about 636.2331199791.

The spelling of 257542448 in words is "two hundred fifty-seven million, five hundred forty-two thousand, four hundred forty-eight".