253243635 has 32 divisors (see below), whose sum is σ = 418901760. Its totient is φ = 130569600.

The previous prime is 253243607. The next prime is 253243657. The reversal of 253243635 is 536342352.

253243635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 253243635 - 2⁵ = 253243603 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 253243596 and 253243605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51640 + ... + 56330.

It is an arithmetic number, because the mean of its divisors is an integer number (13090680).

Almost surely, 2^253243635 is an apocalyptic number.

253243635 is a deficient number, since it is larger than the sum of its proper divisors (165658125).

253243635 is a wasteful number, since it uses less digits than its factorization.

253243635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819.

The product of its digits is 64800, while the sum is 33.

The square root of 253243635 is about 15913.6304783038. The cubic root of 253243635 is about 632.6733088589.

Adding to 253243635 its reverse (536342352), we get a palindrome (789585987).

The spelling of 253243635 in words is "two hundred fifty-three million, two hundred forty-three thousand, six hundred thirty-five".