2553575581 has 2 divisors, whose sum is σ = 2553575582. Its totient is φ = 2553575580.

The previous prime is 2553575579. The next prime is 2553575603. The reversal of 2553575581 is 1855753552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1877835556 + 675740025 = 43334^2 + 25995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553575581 - 2¹ = 2553575579 is a prime.

It is a super-2 number, since 2×2553575581² = 13041496495758975122, which contains 22 as substring.

Together with 2553575579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2553575501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276787790 + 1276787791.

It is an arithmetic number, because the mean of its divisors is an integer number (1276787791).

Almost surely, 2^2553575581 is an apocalyptic number.

It is an amenable number.

2553575581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553575581 is an equidigital number, since it uses as much as digits as its factorization.

2553575581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050000, while the sum is 46.

The square root of 2553575581 is about 50532.9158173165. The cubic root of 2553575581 is about 1366.8354652171.

The spelling of 2553575581 in words is "two billion, five hundred fifty-three million, five hundred seventy-five thousand, five hundred eighty-one".