305413403645225 has 48 divisors (see below), whose sum is σ = 388451410226880. Its totient is φ = 238075639603200.

The previous prime is 305413403645197. The next prime is 305413403645237. The reversal of 305413403645225 is 522546304314503.

It is a de Polignac number, because none of the positive numbers 2^k-305413403645225 is a prime.

It is a super-2 number, since 2×305413403645225² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305413403645225.

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, 746949641 + ... + 747358409.

It is an arithmetic number, because the mean of its divisors is an integer number (8092737713060).

Almost surely, 2^{305413403645225} is an apocalyptic number.

It is an amenable number.

305413403645225 is a deficient number, since it is larger than the sum of its proper divisors (83038006581655).

305413403645225 is a wasteful number, since it uses less digits than its factorization.

305413403645225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410490 (or 410485 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 47.

Adding to 305413403645225 its reverse (522546304314503), we get a palindrome (827959707959728).

The spelling of 305413403645225 in words is "three hundred five trillion, four hundred thirteen billion, four hundred three million, six hundred forty-five thousand, two hundred twenty-five".