305606056 has 32 divisors (see below), whose sum is σ = 667232640. Its totient is φ = 128501568.

The previous prime is 305606053. The next prime is 305606071. The reversal of 305606056 is 650606503.

It is a happy number.

It is a super-2 number, since 2×305606056² = 186790122927750272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (305606053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48516 + ... + 54451.

It is an arithmetic number, because the mean of its divisors is an integer number (20851020).

Almost surely, 2^305606056 is an apocalyptic number.

It is an amenable number.

305606056 is an abundant number, since it is smaller than the sum of its proper divisors (361626584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305606056 is a wasteful number, since it uses less digits than its factorization.

305606056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103033 (or 103029 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 305606056 is about 17481.5919183580. The cubic root of 305606056 is about 673.5771076506.

The spelling of 305606056 in words is "three hundred five million, six hundred six thousand, fifty-six".