253798297 has 4 divisors (see below), whose sum is σ = 257275060. Its totient is φ = 250321536.

The previous prime is 253798289. The next prime is 253798301. The reversal of 253798297 is 792897352.

253798297 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.

It can be written as a sum of positive squares in 2 ways, for example, as 107412496 + 146385801 = 10364^2 + 12099^2 .

It is a cyclic number.

It is not a de Polignac number, because 253798297 - 2³ = 253798289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253798217) 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, 1738272 + ... + 1738417.

It is an arithmetic number, because the mean of its divisors is an integer number (64318765).

Almost surely, 2^253798297 is an apocalyptic number.

It is an amenable number.

253798297 is a deficient number, since it is larger than the sum of its proper divisors (3476763).

253798297 is an equidigital number, since it uses as much as digits as its factorization.

253798297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476762.

The product of its digits is 1905120, while the sum is 52.

The square root of 253798297 is about 15931.0482078236. The cubic root of 253798297 is about 633.1348722274.

The spelling of 253798297 in words is "two hundred fifty-three million, seven hundred ninety-eight thousand, two hundred ninety-seven".