4025220325 has 24 divisors (see below), whose sum is σ = 5836981568. Its totient is φ = 2695956480.

The previous prime is 4025220323. The next prime is 4025220341. The reversal of 4025220325 is 5230225204.

It is a happy number.

It is not a de Polignac number, because 4025220325 - 2¹ = 4025220323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4025220325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025220323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 259932 + ... + 274981.

Almost surely, 2^4025220325 is an apocalyptic number.

It is an amenable number.

4025220325 is a deficient number, since it is larger than the sum of its proper divisors (1811761243).

4025220325 is a wasteful number, since it uses less digits than its factorization.

4025220325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534973 (or 534968 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 4025220325 is about 63444.6240827385. The cubic root of 4025220325 is about 1590.7302955604.

Adding to 4025220325 its reverse (5230225204), we get a palindrome (9255445529).

The spelling of 4025220325 in words is "four billion, twenty-five million, two hundred twenty thousand, three hundred twenty-five".