253236853 has 4 divisors (see below), whose sum is σ = 254509600. Its totient is φ = 251964108.

The previous prime is 253236829. The next prime is 253236871. The reversal of 253236853 is 358632352.

253236853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253236853 - 2¹⁷ = 253105781 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 (253236253) 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, 636075 + ... + 636472.

It is an arithmetic number, because the mean of its divisors is an integer number (63627400).

Almost surely, 2^253236853 is an apocalyptic number.

It is an amenable number.

253236853 is a deficient number, since it is larger than the sum of its proper divisors (1272747).

253236853 is a wasteful number, since it uses less digits than its factorization.

253236853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272746.

The product of its digits is 129600, while the sum is 37.

The square root of 253236853 is about 15913.4173891091. The cubic root of 253236853 is about 632.6676610320.

The spelling of 253236853 in words is "two hundred fifty-three million, two hundred thirty-six thousand, eight hundred fifty-three".