2520249 has 4 divisors (see below), whose sum is σ = 3360336. Its totient is φ = 1680164.

The previous prime is 2520247. The next prime is 2520251. The reversal of 2520249 is 9420252.

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 an interprime number because it is at equal distance from previous prime (2520247) and next prime (2520251).

It is a cyclic number.

It is not a de Polignac number, because 2520249 - 2¹ = 2520247 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2520241) 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, 420039 + ... + 420044.

It is an arithmetic number, because the mean of its divisors is an integer number (840084).

2^2520249 is an apocalyptic number.

It is an amenable number.

2520249 is a deficient number, since it is larger than the sum of its proper divisors (840087).

2520249 is an equidigital number, since it uses as much as digits as its factorization.

2520249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840086.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2520249 is about 1587.5292123297. The cubic root of 2520249 is about 136.0863242321.

The spelling of 2520249 in words is "two million, five hundred twenty thousand, two hundred forty-nine".