253378768 has 10 divisors (see below), whose sum is σ = 490921394. Its totient is φ = 126689376.

The previous prime is 253378753. The next prime is 253378777. The reversal of 253378768 is 867873352.

It can be written as a sum of positive squares in only one way, i.e., 248125504 + 5253264 = 15752^2 + 2292^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7918071 + ... + 7918102.

Almost surely, 2^253378768 is an apocalyptic number.

It is an amenable number.

253378768 is a deficient number, since it is larger than the sum of its proper divisors (237542626).

253378768 is a wasteful number, since it uses less digits than its factorization.

253378768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836181 (or 15836175 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The square root of 253378768 is about 15917.8757376730. The cubic root of 253378768 is about 632.7858221702.

The spelling of 253378768 in words is "two hundred fifty-three million, three hundred seventy-eight thousand, seven hundred sixty-eight".