253035247 has 4 divisors (see below), whose sum is σ = 257324040. Its totient is φ = 248746456.

The previous prime is 253035239. The next prime is 253035253. The reversal of 253035247 is 742530352.

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

It is a cyclic number.

It is not a de Polignac number, because 253035247 - 2³ = 253035239 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 (253035257) 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, 2144308 + ... + 2144425.

It is an arithmetic number, because the mean of its divisors is an integer number (64331010).

Almost surely, 2^253035247 is an apocalyptic number.

253035247 is a deficient number, since it is larger than the sum of its proper divisors (4288793).

253035247 is an equidigital number, since it uses as much as digits as its factorization.

253035247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288792.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 253035247 is about 15907.0816619517. The cubic root of 253035247 is about 632.4997241012.

Adding to 253035247 its reverse (742530352), we get a palindrome (995565599).

The spelling of 253035247 in words is "two hundred fifty-three million, thirty-five thousand, two hundred forty-seven".