2521047 has 8 divisors (see below), whose sum is σ = 3439744. Its totient is φ = 1641528.

The previous prime is 2521039. The next prime is 2521063. The reversal of 2521047 is 7401252.

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

It is not a de Polignac number, because 2521047 - 2³ = 2521039 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 (2521037) 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, 9643 + ... + 9900.

It is an arithmetic number, because the mean of its divisors is an integer number (429968).

2^2521047 is an apocalyptic number.

2521047 is a deficient number, since it is larger than the sum of its proper divisors (918697).

2521047 is a wasteful number, since it uses less digits than its factorization.

2521047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19589.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2521047 is about 1587.7805263953. The cubic root of 2521047 is about 136.1006859648.

Adding to 2521047 its reverse (7401252), we get a palindrome (9922299).

The spelling of 2521047 in words is "two million, five hundred twenty-one thousand, forty-seven".