253255768 has 8 divisors (see below), whose sum is σ = 474854580. Its totient is φ = 126627880.

The previous prime is 253255763. The next prime is 253255777. The reversal of 253255768 is 867552352.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253255763) by changing a digit.

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, 15828478 + ... + 15828493.

Almost surely, 2^253255768 is an apocalyptic number.

It is an amenable number.

253255768 is a deficient number, since it is larger than the sum of its proper divisors (221598812).

253255768 is a wasteful number, since it uses less digits than its factorization.

253255768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31656977 (or 31656973 counting only the distinct ones).

The product of its digits is 504000, while the sum is 43.

The square root of 253255768 is about 15914.0116878178. The cubic root of 253255768 is about 632.6834125714.

The spelling of 253255768 in words is "two hundred fifty-three million, two hundred fifty-five thousand, seven hundred sixty-eight".