252845424548251 has 4 divisors (see below), whose sum is σ = 252846373610104. Its totient is φ = 252844475486400.

The previous prime is 252845424548243. The next prime is 252845424548263. The reversal of 252845424548251 is 152845424548252.

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 252845424548251 - 2³ = 252845424548243 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 252845424548251.

It is not an unprimeable number, because it can be changed into a prime (252845424548281) 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, 474131190 + ... + 474664171.

It is an arithmetic number, because the mean of its divisors is an integer number (63211593402526).

Almost surely, 2^{252845424548251} is an apocalyptic number.

252845424548251 is a deficient number, since it is larger than the sum of its proper divisors (949061853).

252845424548251 is an equidigital number, since it uses as much as digits as its factorization.

252845424548251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949061852.

The product of its digits is 163840000, while the sum is 61.

Subtracting from 252845424548251 its reverse (152845424548252), we obtain a palindrome (99999999999999).

The spelling of 252845424548251 in words is "two hundred fifty-two trillion, eight hundred forty-five billion, four hundred twenty-four million, five hundred forty-eight thousand, two hundred fifty-one".