2573551 has 2 divisors, whose sum is σ = 2573552.
Its totient is φ = 2573550.
The previous prime is 2573533. The next prime is 2573561. The reversal of 2573551 is 1553752.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2573551 - 27 = 2573423 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2573561) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286775 + 1286776.
It is an arithmetic number, because the mean of its divisors is an integer number (1286776).
22573551 is an apocalyptic number.
2573551 is a deficient number, since it is larger than the sum of its proper divisors (1).
2573551 is an equidigital number, since it uses as much as digits as its factorization.
2573551 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 5250, while the sum is 28.
The square root of 2573551 is about 1604.2290983522.
The cubic root of 2573551 is about 137.0390248817.
The spelling of 2573551 in words is "two million, five hundred seventy-three thousand, five hundred fifty-one".