2553053561 has 4 divisors (see below), whose sum is σ = 2553162612. Its totient is φ = 2552944512.

The previous prime is 2553053549. The next prime is 2553053597. The reversal of 2553053561 is 1653503552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1193287936 + 1359765625 = 34544^2 + 36875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553053561 - 2¹⁴ = 2553037177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553053501) 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, 3476 + ... + 71541.

It is an arithmetic number, because the mean of its divisors is an integer number (638290653).

Almost surely, 2^2553053561 is an apocalyptic number.

It is an amenable number.

2553053561 is a deficient number, since it is larger than the sum of its proper divisors (109051).

2553053561 is an equidigital number, since it uses as much as digits as its factorization.

2553053561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109050.

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 2553053561 is about 50527.7504050992. The cubic root of 2553053561 is about 1366.7423194753.

The spelling of 2553053561 in words is "two billion, five hundred fifty-three million, fifty-three thousand, five hundred sixty-one".