4021200025 has 12 divisors (see below), whose sum is σ = 5022688572. Its totient is φ = 3193475840.

The previous prime is 4021200017. The next prime is 4021200049. The reversal of 4021200025 is 5200021204.

It can be written as a sum of positive squares in 6 ways, for example, as 406304649 + 3614895376 = 20157^2 + 60124^2 .

It is not a de Polignac number, because 4021200025 - 2³ = 4021200017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021199981 and 4021200008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583612 + ... + 590461.

It is an arithmetic number, because the mean of its divisors is an integer number (418557381).

Almost surely, 2^4021200025 is an apocalyptic number.

It is an amenable number.

4021200025 is a deficient number, since it is larger than the sum of its proper divisors (1001488547).

4021200025 is a wasteful number, since it uses less digits than its factorization.

4021200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174220 (or 1174215 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4021200025 is about 63412.9326320744. The cubic root of 4021200025 is about 1590.2005238705.

Adding to 4021200025 its reverse (5200021204), we get a palindrome (9221221229).

The spelling of 4021200025 in words is "four billion, twenty-one million, two hundred thousand, twenty-five".