253734253 has 4 divisors (see below), whose sum is σ = 262483740. Its totient is φ = 244984768.

The previous prime is 253734223. The next prime is 253734259. The reversal of 253734253 is 352437352.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70862724 + 182871529 = 8418^2 + 13523^2 .

It is a cyclic number.

It is not a de Polignac number, because 253734253 - 2⁹ = 253733741 is a prime.

It is a super-2 number, since 2×253734253² = 128762142290936018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253734259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4374700 + ... + 4374757.

It is an arithmetic number, because the mean of its divisors is an integer number (65620935).

Almost surely, 2^253734253 is an apocalyptic number.

It is an amenable number.

253734253 is a deficient number, since it is larger than the sum of its proper divisors (8749487).

253734253 is an equidigital number, since it uses as much as digits as its factorization.

253734253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8749486.

The product of its digits is 75600, while the sum is 34.

The square root of 253734253 is about 15929.0380437740. The cubic root of 253734253 is about 633.0816122155.

The spelling of 253734253 in words is "two hundred fifty-three million, seven hundred thirty-four thousand, two hundred fifty-three".