4245203025 has 72 divisors (see below), whose sum is σ = 9201089664. Its totient is φ = 1826496000.

The previous prime is 4245203009. The next prime is 4245203047. The reversal of 4245203025 is 5203025424.

It is a happy number.

It is not a de Polignac number, because 4245203025 - 2⁴ = 4245203009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4245203025.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 52501 + ... + 106050.

It is an arithmetic number, because the mean of its divisors is an integer number (127792912).

Almost surely, 2^4245203025 is an apocalyptic number.

4245203025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4245203025 is an abundant number, since it is smaller than the sum of its proper divisors (4955886639).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4245203025 is a wasteful number, since it uses less digits than its factorization.

4245203025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158591 (or 158583 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 4245203025 is about 65155.2225458558. Note that the first 3 decimals coincide. The cubic root of 4245203025 is about 1619.1962462355.

Adding to 4245203025 its reverse (5203025424), we get a palindrome (9448228449).

The spelling of 4245203025 in words is "four billion, two hundred forty-five million, two hundred three thousand, twenty-five".