4451220125 has 32 divisors (see below), whose sum is σ = 6069682944. Its totient is φ = 3232152000.

The previous prime is 4451220097. The next prime is 4451220133. The reversal of 4451220125 is 5210221544.

It is not a de Polignac number, because 4451220125 - 2⁸ = 4451219869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4451220094 and 4451220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1019447 + ... + 1023803.

It is an arithmetic number, because the mean of its divisors is an integer number (189677592).

Almost surely, 2^4451220125 is an apocalyptic number.

It is an amenable number.

4451220125 is a deficient number, since it is larger than the sum of its proper divisors (1618462819).

4451220125 is a wasteful number, since it uses less digits than its factorization.

4451220125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126 (or 5116 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 4451220125 is about 66717.4649173663. The cubic root of 4451220125 is about 1644.9764719183.

Adding to 4451220125 its reverse (5210221544), we get a palindrome (9661441669).

The spelling of 4451220125 in words is "four billion, four hundred fifty-one million, two hundred twenty thousand, one hundred twenty-five".