2005524553 has 4 divisors (see below), whose sum is σ = 2054439828. Its totient is φ = 1956609280.

The previous prime is 2005524539. The next prime is 2005524559. The reversal of 2005524553 is 3554255002.

It is a happy number.

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 402082704 + 1603441849 = 20052^2 + 40043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005524553 - 2⁹ = 2005524041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005524559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24457576 + ... + 24457657.

It is an arithmetic number, because the mean of its divisors is an integer number (513609957).

Almost surely, 2^2005524553 is an apocalyptic number.

It is an amenable number.

2005524553 is a deficient number, since it is larger than the sum of its proper divisors (48915275).

2005524553 is an equidigital number, since it uses as much as digits as its factorization.

2005524553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48915274.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 2005524553 is about 44783.0833351166. The cubic root of 2005524553 is about 1261.0800668100.

Adding to 2005524553 its reverse (3554255002), we get a palindrome (5559779555).

The spelling of 2005524553 in words is "two billion, five million, five hundred twenty-four thousand, five hundred fifty-three".