253225253543 has 4 divisors (see below), whose sum is σ = 253277827440. Its totient is φ = 253172679648.

The previous prime is 253225253417. The next prime is 253225253549. The reversal of 253225253543 is 345352522352.

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 253225253543 - 2¹² = 253225249447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253225253543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253225253549) 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, 26279723 + ... + 26289356.

It is an arithmetic number, because the mean of its divisors is an integer number (63319456860).

Almost surely, 2^253225253543 is an apocalyptic number.

253225253543 is a deficient number, since it is larger than the sum of its proper divisors (52573897).

253225253543 is an equidigital number, since it uses as much as digits as its factorization.

253225253543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52573896.

The product of its digits is 1080000, while the sum is 41.

Adding to 253225253543 its reverse (345352522352), we get a palindrome (598577775895).

The spelling of 253225253543 in words is "two hundred fifty-three billion, two hundred twenty-five million, two hundred fifty-three thousand, five hundred forty-three".