4245625 has 10 divisors (see below), whose sum is σ = 5306114. Its totient is φ = 3396000.

The previous prime is 4245623. The next prime is 4245643. The reversal of 4245625 is 5265424.

It can be written as a sum of positive squares in 5 ways, for example, as 2627641 + 1617984 = 1621^2 + 1272^2 .

It is not a de Polignac number, because 4245625 - 2¹ = 4245623 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4245593 and 4245602.

It is not an unprimeable number, because it can be changed into a prime (4245623) 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, 2772 + ... + 4021.

Almost surely, 2^4245625 is an apocalyptic number.

It is an amenable number.

4245625 is a deficient number, since it is larger than the sum of its proper divisors (1060489).

4245625 is an frugal number, since it uses more digits than its factorization.

4245625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6813 (or 6798 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 4245625 is about 2060.4914462332. The cubic root of 4245625 is about 161.9249894058.

The spelling of 4245625 in words is "four million, two hundred forty-five thousand, six hundred twenty-five".