445425625 has 10 divisors (see below), whose sum is σ = 556604642. Its totient is φ = 356340000.

The previous prime is 445425623. The next prime is 445425641. The reversal of 445425625 is 526524544.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 153289161 + 292136464 = 12381^2 + 17092^2 .

It is not a de Polignac number, because 445425625 - 2¹ = 445425623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445425623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 355716 + ... + 356965.

Almost surely, 2^445425625 is an apocalyptic number.

It is an amenable number.

445425625 is a deficient number, since it is larger than the sum of its proper divisors (111179017).

445425625 is an frugal number, since it uses more digits than its factorization.

445425625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712701 (or 712686 counting only the distinct ones).

The product of its digits is 192000, while the sum is 37.

The square root of 445425625 is about 21105.1089786336. The cubic root of 445425625 is about 763.7040012905.

The spelling of 445425625 in words is "four hundred forty-five million, four hundred twenty-five thousand, six hundred twenty-five".