4435220425 has 6 divisors (see below), whose sum is σ = 5499673358. Its totient is φ = 3548176320.

The previous prime is 4435220401. The next prime is 4435220429. The reversal of 4435220425 is 5240225344.

It can be written as a sum of positive squares in 3 ways, for example, as 1139197504 + 3296022921 = 33752^2 + 57411^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4435220425 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4435220429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88704384 + ... + 88704433.

Almost surely, 2^4435220425 is an apocalyptic number.

It is an amenable number.

4435220425 is a deficient number, since it is larger than the sum of its proper divisors (1064452933).

4435220425 is a wasteful number, since it uses less digits than its factorization.

4435220425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177408827 (or 177408822 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 4435220425 is about 66597.4505893431. The cubic root of 4435220425 is about 1643.0031757037.

Adding to 4435220425 its reverse (5240225344), we get a palindrome (9675445769).

The spelling of 4435220425 in words is "four billion, four hundred thirty-five million, two hundred twenty thousand, four hundred twenty-five".