4525509 has 8 divisors (see below), whose sum is σ = 6046240. Its totient is φ = 3010896.

The previous prime is 4525501. The next prime is 4525517. The reversal of 4525509 is 9055254.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4525501) and next prime (4525517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4525509 - 2³ = 4525501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4525501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639 + ... + 3075.

It is an arithmetic number, because the mean of its divisors is an integer number (755780).

Almost surely, 2^4525509 is an apocalyptic number.

It is an amenable number.

4525509 is a deficient number, since it is larger than the sum of its proper divisors (1520731).

4525509 is a wasteful number, since it uses less digits than its factorization.

4525509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 4525509 is about 2127.3243758299. The cubic root of 4525509 is about 165.4077335796.

The spelling of 4525509 in words is "four million, five hundred twenty-five thousand, five hundred nine".