2509473 has 4 divisors (see below), whose sum is σ = 3345968. Its totient is φ = 1672980.

The previous prime is 2509433. The next prime is 2509483. The reversal of 2509473 is 3749052.

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 2509473 - 2¹³ = 2501281 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2509473.

It is not an unprimeable number, because it can be changed into a prime (2509433) 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, 418243 + ... + 418248.

It is an arithmetic number, because the mean of its divisors is an integer number (836492).

2^2509473 is an apocalyptic number.

It is an amenable number.

2509473 is a deficient number, since it is larger than the sum of its proper divisors (836495).

2509473 is an equidigital number, since it uses as much as digits as its factorization.

2509473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836494.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2509473 is about 1584.1316233192. The cubic root of 2509473 is about 135.8920892843.

The spelling of 2509473 in words is "two million, five hundred nine thousand, four hundred seventy-three".