2449581553 has 2 divisors, whose sum is σ = 2449581554. Its totient is φ = 2449581552.

The previous prime is 2449581521. The next prime is 2449581577. The reversal of 2449581553 is 3551859442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2354869729 + 94711824 = 48527^2 + 9732^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449581553 - 2⁵ = 2449581521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2449501553) 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, 1224790776 + 1224790777.

It is an arithmetic number, because the mean of its divisors is an integer number (1224790777).

Almost surely, 2^2449581553 is an apocalyptic number.

It is an amenable number.

2449581553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449581553 is an equidigital number, since it uses as much as digits as its factorization.

2449581553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 46.

The square root of 2449581553 is about 49493.2475495395. The cubic root of 2449581553 is about 1348.0229960900.

The spelling of 2449581553 in words is "two billion, four hundred forty-nine million, five hundred eighty-one thousand, five hundred fifty-three".