4645616225 has 12 divisors (see below), whose sum is σ = 5762903100. Its totient is φ = 3714984000.

The previous prime is 4645616201. The next prime is 4645616237. The reversal of 4645616225 is 5226165464.

It can be written as a sum of positive squares in 6 ways, for example, as 1070532961 + 3575083264 = 32719^2 + 59792^2 .

It is not a de Polignac number, because 4645616225 - 2²² = 4641421921 is a prime.

It is a Curzon number.

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, 27275 + ... + 100175.

It is an arithmetic number, because the mean of its divisors is an integer number (480241925).

Almost surely, 2^4645616225 is an apocalyptic number.

It is an amenable number.

4645616225 is a deficient number, since it is larger than the sum of its proper divisors (1117286875).

4645616225 is a wasteful number, since it uses less digits than its factorization.

4645616225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75460 (or 75455 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 4645616225 is about 68158.7575077480. The cubic root of 4645616225 is about 1668.5828542020.

The spelling of 4645616225 in words is "four billion, six hundred forty-five million, six hundred sixteen thousand, two hundred twenty-five".