2520449 has 4 divisors (see below), whose sum is σ = 2526000. Its totient is φ = 2514900.

The previous prime is 2520443. The next prime is 2520451. The reversal of 2520449 is 9440252.

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 a cyclic number.

It is not a de Polignac number, because 2520449 - 2⁴ = 2520433 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2520443) 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, 2027 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (631500).

2^2520449 is an apocalyptic number.

It is an amenable number.

2520449 is a deficient number, since it is larger than the sum of its proper divisors (5551).

2520449 is an equidigital number, since it uses as much as digits as its factorization.

2520449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2520449 is about 1587.5922020469. The cubic root of 2520449 is about 136.0899239485.

It can be divided in two parts, 25 and 20449, that multiplied together give a square (511225 = 715²).

The spelling of 2520449 in words is "two million, five hundred twenty thousand, four hundred forty-nine".