634255 has 4 divisors (see below), whose sum is σ = 761112. Its totient is φ = 507400.

The previous prime is 634247. The next prime is 634261. The reversal of 634255 is 552436.

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

It is not a de Polignac number, because 634255 - 2³ = 634247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63421 + ... + 63430.

It is an arithmetic number, because the mean of its divisors is an integer number (190278).

2⁶³⁴²⁵⁵ is an apocalyptic number.

634255 is a deficient number, since it is larger than the sum of its proper divisors (126857).

634255 is a wasteful number, since it uses less digits than its factorization.

634255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126856.

The product of its digits is 3600, while the sum is 25.

The square root of 634255 is about 796.4012807624. The cubic root of 634255 is about 85.9187532662.

The spelling of 634255 in words is "six hundred thirty-four thousand, two hundred fifty-five".