305313144225 has 12 divisors (see below), whose sum is σ = 504784398576. Its totient is φ = 162833676880.

The previous prime is 305313144217. The next prime is 305313144251. The reversal of 305313144225 is 522441313503.

It is not a de Polignac number, because 305313144225 - 2³ = 305313144217 is a prime.

It is a super-2 number, since 2×305313144225² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2035420887 + ... + 2035421036.

It is an arithmetic number, because the mean of its divisors is an integer number (42065366548).

Almost surely, 2^305313144225 is an apocalyptic number.

It is an amenable number.

305313144225 is a deficient number, since it is larger than the sum of its proper divisors (199471254351).

305313144225 is a wasteful number, since it uses less digits than its factorization.

305313144225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070841936 (or 4070841931 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 305313144225 its reverse (522441313503), we get a palindrome (827754457728).

The spelling of 305313144225 in words is "three hundred five billion, three hundred thirteen million, one hundred forty-four thousand, two hundred twenty-five".