2553539 has 2 divisors, whose sum is σ = 2553540.
Its totient is φ = 2553538.
The previous prime is 2553527. The next prime is 2553541. The reversal of 2553539 is 9353552.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2553539 - 28 = 2553283 is a prime.
It is a super-2 number, since 2×25535392 = 13041122849042, which contains 22 as substring.
It is a Sophie Germain prime.
Together with 2553541, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (2553559) 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, 1276769 + 1276770.
It is an arithmetic number, because the mean of its divisors is an integer number (1276770).
22553539 is an apocalyptic number.
2553539 is a deficient number, since it is larger than the sum of its proper divisors (1).
2553539 is an equidigital number, since it uses as much as digits as its factorization.
2553539 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 20250, while the sum is 32.
The square root of 2553539 is about 1597.9796619482.
The cubic root of 2553539 is about 136.6828938363.
The spelling of 2553539 in words is "two million, five hundred fifty-three thousand, five hundred thirty-nine".