4125902085 has 24 divisors (see below), whose sum is σ = 7192915704. Its totient is φ = 2187757440.

The previous prime is 4125902047. The next prime is 4125902089. The reversal of 4125902085 is 5802095214.

4125902085 is a `hidden beast` number, since 41 + 2 + 590 + 20 + 8 + 5 = 666.

4125902085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2384759556 + 1741142529 = 48834^2 + 41727^2 .

It is not a de Polignac number, because 4125902085 - 2⁶ = 4125902021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125902089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257206 + ... + 272775.

It is an arithmetic number, because the mean of its divisors is an integer number (299704821).

Almost surely, 2^4125902085 is an apocalyptic number.

4125902085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4125902085 is a deficient number, since it is larger than the sum of its proper divisors (3067013619).

4125902085 is a wasteful number, since it uses less digits than its factorization.

4125902085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530165 (or 530162 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 4125902085 is about 64233.1852316231. The cubic root of 4125902085 is about 1603.8840642993.

Adding to 4125902085 its reverse (5802095214), we get a palindrome (9927997299).

The spelling of 4125902085 in words is "four billion, one hundred twenty-five million, nine hundred two thousand, eighty-five".