4351220425 has 6 divisors (see below), whose sum is σ = 5395513358. Its totient is φ = 3480976320.

The previous prime is 4351220351. The next prime is 4351220437. The reversal of 4351220425 is 5240221534.

It can be written as a sum of positive squares in 3 ways, for example, as 19474569 + 4331745856 = 4413^2 + 65816^2 .

It is not a de Polignac number, because 4351220425 - 2⁷ = 4351220297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4351220393 and 4351220402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87024384 + ... + 87024433.

Almost surely, 2^4351220425 is an apocalyptic number.

It is an amenable number.

4351220425 is a deficient number, since it is larger than the sum of its proper divisors (1044292933).

4351220425 is a wasteful number, since it uses less digits than its factorization.

4351220425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174048827 (or 174048822 counting only the distinct ones).

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

The square root of 4351220425 is about 65963.7811605733. The cubic root of 4351220425 is about 1632.5645485399.

Adding to 4351220425 its reverse (5240221534), we get a palindrome (9591441959).

The spelling of 4351220425 in words is "four billion, three hundred fifty-one million, two hundred twenty thousand, four hundred twenty-five".