2549423 has 2 divisors, whose sum is σ = 2549424. Its totient is φ = 2549422.

The previous prime is 2549387. The next prime is 2549429. The reversal of 2549423 is 3249452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2549423 - 2⁶ = 2549359 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 5⁹ + 4⁴ + 9⁴ + 4⁶ + 2¹⁹ + 3¹⁰ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2549429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274711 + 1274712.

It is an arithmetic number, because the mean of its divisors is an integer number (1274712).

2^2549423 is an apocalyptic number.

2549423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549423 is an equidigital number, since it uses as much as digits as its factorization.

2549423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 2549423 is about 1596.6912663380. The cubic root of 2549423 is about 136.6094155073.

Adding to 2549423 its sum of digits (29), we get a palindrome (2549452).

The spelling of 2549423 in words is "two million, five hundred forty-nine thousand, four hundred twenty-three".