253855755 has 16 divisors (see below), whose sum is σ = 451299360. Its totient is φ = 135389664.

The previous prime is 253855741. The next prime is 253855793. The reversal of 253855755 is 557558352.

It is not a de Polignac number, because 253855755 - 2⁴ = 253855739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 253855755.

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 in 15 ways as a sum of consecutive naturals, for example, 940072 + ... + 940341.

It is an arithmetic number, because the mean of its divisors is an integer number (28206210).

Almost surely, 2^253855755 is an apocalyptic number.

253855755 is a deficient number, since it is larger than the sum of its proper divisors (197443605).

253855755 is a wasteful number, since it uses less digits than its factorization.

253855755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880427 (or 1880421 counting only the distinct ones).

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

The square root of 253855755 is about 15932.8514397141. The cubic root of 253855755 is about 633.1826475920.

The spelling of 253855755 in words is "two hundred fifty-three million, eight hundred fifty-five thousand, seven hundred fifty-five".