2521223 has 2 divisors, whose sum is σ = 2521224. Its totient is φ = 2521222.

The previous prime is 2521171. The next prime is 2521249. The reversal of 2521223 is 3221252.

2521223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2521223 - 2¹² = 2517127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521273) 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 as a sum of consecutive naturals, namely, 1260611 + 1260612.

It is an arithmetic number, because the mean of its divisors is an integer number (1260612).

2^2521223 is an apocalyptic number.

2521223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521223 is an equidigital number, since it uses as much as digits as its factorization.

2521223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 17.

The square root of 2521223 is about 1587.8359487050. The cubic root of 2521223 is about 136.1038530568.

Adding to 2521223 its reverse (3221252), we get a palindrome (5742475).

It can be divided in two parts, 2521 and 223, that added together give a cube (2744 = 14³).

The spelling of 2521223 in words is "two million, five hundred twenty-one thousand, two hundred twenty-three".