253047253 has 4 divisors (see below), whose sum is σ = 253752480. Its totient is φ = 252342028.

The previous prime is 253047241. The next prime is 253047257. The reversal of 253047253 is 352740352.

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 253047253 - 2⁹ = 253046741 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 (253047257) 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, 352075 + ... + 352792.

It is an arithmetic number, because the mean of its divisors is an integer number (63438120).

Almost surely, 2^253047253 is an apocalyptic number.

It is an amenable number.

253047253 is a deficient number, since it is larger than the sum of its proper divisors (705227).

253047253 is an equidigital number, since it uses as much as digits as its factorization.

253047253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705226.

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

The square root of 253047253 is about 15907.4590365652. The cubic root of 253047253 is about 632.5097275449.

The spelling of 253047253 in words is "two hundred fifty-three million, forty-seven thousand, two hundred fifty-three".