253875555 has 12 divisors (see below), whose sum is σ = 440051040. Its totient is φ = 135400272.

The previous prime is 253875551. The next prime is 253875563. The reversal of 253875555 is 555578352.

253875555 is a `hidden beast` number, since 25 + 3 + 8 + 75 + 555 = 666.

It is not a de Polignac number, because 253875555 - 2² = 253875551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5641679 = 253875555 / (2 + 5 + 3 + 8 + 7 + 5 + 5 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 253875555.

It is not an unprimeable number, because it can be changed into a prime (253875551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2820795 + ... + 2820884.

It is an arithmetic number, because the mean of its divisors is an integer number (36670920).

Almost surely, 2^253875555 is an apocalyptic number.

253875555 is a deficient number, since it is larger than the sum of its proper divisors (186175485).

253875555 is a wasteful number, since it uses less digits than its factorization.

253875555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641690 (or 5641687 counting only the distinct ones).

The product of its digits is 1050000, while the sum is 45.

The square root of 253875555 is about 15933.4727853033. The cubic root of 253875555 is about 633.1991092902.

The spelling of 253875555 in words is "two hundred fifty-three million, eight hundred seventy-five thousand, five hundred fifty-five".