4446778225 has 12 divisors (see below), whose sum is σ = 5565541104. Its totient is φ = 3524173520.

The previous prime is 4446778199. The next prime is 4446778253. The reversal of 4446778225 is 5228776444.

It is not a de Polignac number, because 4446778225 - 2¹¹ = 4446776177 is a prime.

It is a Duffinian 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, 828499 + ... + 833848.

It is an arithmetic number, because the mean of its divisors is an integer number (463795092).

Almost surely, 2^4446778225 is an apocalyptic number.

It is an amenable number.

4446778225 is a deficient number, since it is larger than the sum of its proper divisors (1118762879).

4446778225 is a wasteful number, since it uses less digits than its factorization.

4446778225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662464 (or 1662459 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 49.

The square root of 4446778225 is about 66684.1677236809. The cubic root of 4446778225 is about 1644.4291124198.

The spelling of 4446778225 in words is "four billion, four hundred forty-six million, seven hundred seventy-eight thousand, two hundred twenty-five".