253343523 has 4 divisors (see below), whose sum is σ = 337791368. Its totient is φ = 168895680.

The previous prime is 253343491. The next prime is 253343527. The reversal of 253343523 is 325343352.

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

It is not a de Polignac number, because 253343523 - 2⁵ = 253343491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253343527) 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, 42223918 + ... + 42223923.

It is an arithmetic number, because the mean of its divisors is an integer number (84447842).

Almost surely, 2^253343523 is an apocalyptic number.

253343523 is a deficient number, since it is larger than the sum of its proper divisors (84447845).

253343523 is an equidigital number, since it uses as much as digits as its factorization.

253343523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84447844.

The product of its digits is 32400, while the sum is 30.

The square root of 253343523 is about 15916.7686104938. The cubic root of 253343523 is about 632.7564806292.

Adding to 253343523 its reverse (325343352), we get a palindrome (578686875).

It can be divided in two parts, 2533 and 43523, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 253343523 in words is "two hundred fifty-three million, three hundred forty-three thousand, five hundred twenty-three".