345513421252225 has 24 divisors (see below), whose sum is σ = 440106123235680. Its totient is φ = 268932064235520.

The previous prime is 345513421252159. The next prime is 345513421252261. The reversal of 345513421252225 is 522252124315543.

It is a de Polignac number, because none of the positive numbers 2^k-345513421252225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 625030795 + ... + 625583344.

It is an arithmetic number, because the mean of its divisors is an integer number (18337755134820).

Almost surely, 2^{345513421252225} is an apocalyptic number.

It is an amenable number.

345513421252225 is a deficient number, since it is larger than the sum of its proper divisors (94592701983455).

345513421252225 is a wasteful number, since it uses less digits than its factorization.

345513421252225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250614449 (or 1250614444 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 46.

Adding to 345513421252225 its reverse (522252124315543), we get a palindrome (867765545567768).

The spelling of 345513421252225 in words is "three hundred forty-five trillion, five hundred thirteen billion, four hundred twenty-one million, two hundred fifty-two thousand, two hundred twenty-five".