635253 has 16 divisors (see below), whose sum is σ = 893760. Its totient is φ = 400896.

The previous prime is 635251. The next prime is 635263. The reversal of 635253 is 352536.

It is not a de Polignac number, because 635253 - 2¹ = 635251 is a prime.

635253 is a lucky 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 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, 6501 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (55860).

2⁶³⁵²⁵³ is an apocalyptic number.

It is an amenable number.

635253 is a deficient number, since it is larger than the sum of its proper divisors (258507).

635253 is a wasteful number, since it uses less digits than its factorization.

635253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 2700, while the sum is 24.

The square root of 635253 is about 797.0276030352. The cubic root of 635253 is about 85.9637940257.

Adding to 635253 its reverse (352536), we get a palindrome (987789).

It can be divided in two parts, 635 and 253, that added together give a palindrome (888).

The spelling of 635253 in words is "six hundred thirty-five thousand, two hundred fifty-three".