257613368 has 8 divisors (see below), whose sum is σ = 483025080. Its totient is φ = 128806680.

The previous prime is 257613353. The next prime is 257613383. The reversal of 257613368 is 863316752.

It is an interprime number because it is at equal distance from previous prime (257613353) and next prime (257613383).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16100828 + ... + 16100843.

It is an arithmetic number, because the mean of its divisors is an integer number (60378135).

Almost surely, 2^257613368 is an apocalyptic number.

It is an amenable number.

257613368 is a deficient number, since it is larger than the sum of its proper divisors (225411712).

257613368 is a wasteful number, since it uses less digits than its factorization.

257613368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32201677 (or 32201673 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 257613368 is about 16050.3385634073. The cubic root of 257613368 is about 636.2915148989.

The spelling of 257613368 in words is "two hundred fifty-seven million, six hundred thirteen thousand, three hundred sixty-eight".