2521049 has 8 divisors (see below), whose sum is σ = 2735208. Its totient is φ = 2314240.

The previous prime is 2521039. The next prime is 2521063. The reversal of 2521049 is 9401252.

It can be written as a sum of positive squares in 4 ways, for example, as 24649 + 2496400 = 157^2 + 1580^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2521049 - 2¹² = 2516953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2521019) 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, 1112 + ... + 2505.

It is an arithmetic number, because the mean of its divisors is an integer number (341901).

2^2521049 is an apocalyptic number.

It is an amenable number.

2521049 is a deficient number, since it is larger than the sum of its proper divisors (214159).

2521049 is a wasteful number, since it uses less digits than its factorization.

2521049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2521049 is about 1587.7811562051. The cubic root of 2521049 is about 136.1007219553.

The spelling of 2521049 in words is "two million, five hundred twenty-one thousand, forty-nine".