4625509 has 4 divisors (see below), whose sum is σ = 5286304. Its totient is φ = 3964716.

The previous prime is 4625459. The next prime is 4625519. The reversal of 4625509 is 9055264.

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.

It is not a de Polignac number, because 4625509 - 2¹³ = 4617317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4625519) 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, 330387 + ... + 330400.

It is an arithmetic number, because the mean of its divisors is an integer number (1321576).

Almost surely, 2^4625509 is an apocalyptic number.

It is an amenable number.

4625509 is a deficient number, since it is larger than the sum of its proper divisors (660795).

4625509 is an equidigital number, since it uses as much as digits as its factorization.

4625509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660794.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 4625509 is about 2150.6996536011. The cubic root of 4625509 is about 166.6172044335.

The spelling of 4625509 in words is "four million, six hundred twenty-five thousand, five hundred nine".