265143311242225 has 48 divisors (see below), whose sum is σ = 357532325841600. Its totient is φ = 193889789003520.

The previous prime is 265143311242211. The next prime is 265143311242279. The reversal of 265143311242225 is 522242113341562.

It is not a de Polignac number, because 265143311242225 - 2⁷ = 265143311242097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10029054 + ... + 25117096.

It is an arithmetic number, because the mean of its divisors is an integer number (7448590121700).

Almost surely, 2^{265143311242225} is an apocalyptic number.

265143311242225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265143311242225 is a deficient number, since it is larger than the sum of its proper divisors (92389014599375).

265143311242225 is a wasteful number, since it uses less digits than its factorization.

265143311242225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15088594 (or 15088589 counting only the distinct ones).

The product of its digits is 691200, while the sum is 43.

Adding to 265143311242225 its reverse (522242113341562), we get a palindrome (787385424583787).

The spelling of 265143311242225 in words is "two hundred sixty-five trillion, one hundred forty-three billion, three hundred eleven million, two hundred forty-two thousand, two hundred twenty-five".