4525660409 has 4 divisors (see below), whose sum is σ = 4621951104. Its totient is φ = 4429369716.

The previous prime is 4525660397. The next prime is 4525660441. The reversal of 4525660409 is 9040665254.

It is a happy number.

4525660409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9040665254 = 2 ⋅4520332627.

It is a cyclic number.

It is not a de Polignac number, because 4525660409 - 2¹⁶ = 4525594873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4525660459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48145277 + ... + 48145370.

It is an arithmetic number, because the mean of its divisors is an integer number (1155487776).

Almost surely, 2^4525660409 is an apocalyptic number.

It is an amenable number.

4525660409 is a deficient number, since it is larger than the sum of its proper divisors (96290695).

4525660409 is an equidigital number, since it uses as much as digits as its factorization.

4525660409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96290694.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 4525660409 is about 67273.0288377147. The cubic root of 4525660409 is about 1654.0957822957.

The spelling of 4525660409 in words is "four billion, five hundred twenty-five million, six hundred sixty thousand, four hundred nine".