4108169025 has 27 divisors (see below), whose sum is σ = 7359909609. Its totient is φ = 2190510720.

The previous prime is 4108169003. The next prime is 4108169027. The reversal of 4108169025 is 5209618014.

The square root of 4108169025 is 64095.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 564110001 + 3544059024 = 23751^2 + 59532^2 .

It is not a de Polignac number, because 4108169025 - 2⁵ = 4108168993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4108169027) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 959289 + ... + 963561.

Almost surely, 2^4108169025 is an apocalyptic number.

4108169025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4108169025 is the 64095-th square number.

4108169025 is the 32048-th centered octagonal number.

It is an amenable number.

4108169025 is a deficient number, since it is larger than the sum of its proper divisors (3251740584).

4108169025 is an frugal number, since it uses more digits than its factorization.

4108169025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562 (or 4281 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The cubic root of 4108169025 is about 1601.5829418815.

Multiplying 4108169025 by its sum of digits (36), we get a square (147894084900 = 384570²).

The spelling of 4108169025 in words is "four billion, one hundred eight million, one hundred sixty-nine thousand, twenty-five".