445455625 has 20 divisors (see below), whose sum is σ = 557962020. Its totient is φ = 355520000.

The previous prime is 445455601. The next prime is 445455643. The reversal of 445455625 is 526554544.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 327320464 + 118135161 = 18092^2 + 10869^2 .

It is not a de Polignac number, because 445455625 - 2⁹ = 445455113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 505185 + ... + 506065.

It is an arithmetic number, because the mean of its divisors is an integer number (27898101).

Almost surely, 2^445455625 is an apocalyptic number.

It is an amenable number.

445455625 is a deficient number, since it is larger than the sum of its proper divisors (112506395).

445455625 is an frugal number, since it uses more digits than its factorization.

445455625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710 (or 1695 counting only the distinct ones).

The product of its digits is 480000, while the sum is 40.

The square root of 445455625 is about 21105.8196950509. The cubic root of 445455625 is about 763.7211463943.

The spelling of 445455625 in words is "four hundred forty-five million, four hundred fifty-five thousand, six hundred twenty-five".