4421252425 has 12 divisors (see below), whose sum is σ = 5616070236. Its totient is φ = 3450732800.

The previous prime is 4421252413. The next prime is 4421252453. The reversal of 4421252425 is 5242521244.

It can be written as a sum of positive squares in 6 ways, for example, as 1387115536 + 3034136889 = 37244^2 + 55083^2 .

It is not a de Polignac number, because 4421252425 - 2⁵ = 4421252393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2155684 + ... + 2157733.

It is an arithmetic number, because the mean of its divisors is an integer number (468005853).

Almost surely, 2^4421252425 is an apocalyptic number.

It is an amenable number.

4421252425 is a deficient number, since it is larger than the sum of its proper divisors (1194817811).

4421252425 is a wasteful number, since it uses less digits than its factorization.

4421252425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313468 (or 4313463 counting only the distinct ones).

The product of its digits is 25600, while the sum is 31.

The square root of 4421252425 is about 66492.4990130466. The cubic root of 4421252425 is about 1641.2765721184.

Adding to 4421252425 its reverse (5242521244), we get a palindrome (9663773669).

The spelling of 4421252425 in words is "four billion, four hundred twenty-one million, two hundred fifty-two thousand, four hundred twenty-five".