635255 has 4 divisors (see below), whose sum is σ = 762312. Its totient is φ = 508200.

The previous prime is 635251. The next prime is 635263. The reversal of 635255 is 552536.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 635255 - 2² = 635251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63521 + ... + 63530.

It is an arithmetic number, because the mean of its divisors is an integer number (190578).

2⁶³⁵²⁵⁵ is an apocalyptic number.

635255 is a deficient number, since it is larger than the sum of its proper divisors (127057).

635255 is a wasteful number, since it uses less digits than its factorization.

635255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127056.

The product of its digits is 4500, while the sum is 26.

The square root of 635255 is about 797.0288576959. The cubic root of 635255 is about 85.9638842404.

The spelling of 635255 in words is "six hundred thirty-five thousand, two hundred fifty-five".