2521793 has 4 divisors (see below), whose sum is σ = 2569428. Its totient is φ = 2474160.

The previous prime is 2521769. The next prime is 2521807. The reversal of 2521793 is 3971252.

2521793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1827904 + 693889 = 1352^2 + 833^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521793 - 2⁸ = 2521537 is a prime.

It is a super-3 number, since 3×2521793³ = 48111573334867992771, which contains 333 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹¹ + 5⁹ + 2¹⁵ + 1 + 7⁴ + 9 + 3¹² .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2521703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23738 + ... + 23843.

It is an arithmetic number, because the mean of its divisors is an integer number (642357).

2^2521793 is an apocalyptic number.

It is an amenable number.

2521793 is a deficient number, since it is larger than the sum of its proper divisors (47635).

2521793 is an equidigital number, since it uses as much as digits as its factorization.

2521793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47634.

The product of its digits is 3780, while the sum is 29.

The square root of 2521793 is about 1588.0154281366. The cubic root of 2521793 is about 136.1141091045.

The spelling of 2521793 in words is "two million, five hundred twenty-one thousand, seven hundred ninety-three".