4457645625 has 20 divisors (see below), whose sum is σ = 7427035088. Its totient is φ = 2377410000.

The previous prime is 4457645567. The next prime is 4457645653. The reversal of 4457645625 is 5265467544.

It is not a de Polignac number, because 4457645625 - 2⁶ = 4457645561 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1186831 + ... + 1190580.

Almost surely, 2^4457645625 is an apocalyptic number.

It is an amenable number.

4457645625 is a deficient number, since it is larger than the sum of its proper divisors (2969389463).

4457645625 is an equidigital number, since it uses as much as digits as its factorization.

4457645625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377434 (or 2377419 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 48.

The square root of 4457645625 is about 66765.6021091700. The cubic root of 4457645625 is about 1645.7676193741.

The spelling of 4457645625 in words is "four billion, four hundred fifty-seven million, six hundred forty-five thousand, six hundred twenty-five".