305525253025 has 48 divisors (see below), whose sum is σ = 401512962240. Its totient is φ = 229978310400.

The previous prime is 305525252983. The next prime is 305525253029. The reversal of 305525253025 is 520352525503.

It is a de Polignac number, because none of the positive numbers 2^k-305525253025 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305525253029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148817899 + ... + 148819951.

It is an arithmetic number, because the mean of its divisors is an integer number (8364853380).

Almost surely, 2^305525253025 is an apocalyptic number.

It is an amenable number.

305525253025 is a deficient number, since it is larger than the sum of its proper divisors (95987709215).

305525253025 is a wasteful number, since it uses less digits than its factorization.

305525253025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066 (or 4061 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 37.

Adding to 305525253025 its reverse (520352525503), we get a palindrome (825877778528).

The spelling of 305525253025 in words is "three hundred five billion, five hundred twenty-five million, two hundred fifty-three thousand, twenty-five".