253143355 has 4 divisors (see below), whose sum is σ = 303772032. Its totient is φ = 202514680.

The previous prime is 253143299. The next prime is 253143361. The reversal of 253143355 is 553341352.

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

It is not a de Polignac number, because 253143355 - 2¹³ = 253135163 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25314331 + ... + 25314340.

It is an arithmetic number, because the mean of its divisors is an integer number (75943008).

Almost surely, 2^253143355 is an apocalyptic number.

253143355 is a deficient number, since it is larger than the sum of its proper divisors (50628677).

253143355 is an equidigital number, since it uses as much as digits as its factorization.

253143355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50628676.

The product of its digits is 27000, while the sum is 31.

The square root of 253143355 is about 15910.4794082391. The cubic root of 253143355 is about 632.5897886873.

The spelling of 253143355 in words is "two hundred fifty-three million, one hundred forty-three thousand, three hundred fifty-five".