2553500305 has 4 divisors (see below), whose sum is σ = 3064200372. Its totient is φ = 2042800240.

The previous prime is 2553500297. The next prime is 2553500309. The reversal of 2553500305 is 5030053552.

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 1593925776 + 959574529 = 39924^2 + 30977^2 .

It is not a de Polignac number, because 2553500305 - 2³ = 2553500297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553500309) 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 in 3 ways as a sum of consecutive naturals, for example, 255350026 + ... + 255350035.

It is an arithmetic number, because the mean of its divisors is an integer number (766050093).

Almost surely, 2^2553500305 is an apocalyptic number.

It is an amenable number.

2553500305 is a deficient number, since it is larger than the sum of its proper divisors (510700067).

2553500305 is an equidigital number, since it uses as much as digits as its factorization.

2553500305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510700066.

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 2553500305 is about 50532.1709903701. The cubic root of 2553500305 is about 1366.8220342567.

Adding to 2553500305 its reverse (5030053552), we get a palindrome (7583553857).

The spelling of 2553500305 in words is "two billion, five hundred fifty-three million, five hundred thousand, three hundred five".