2452456561 has 2 divisors, whose sum is σ = 2452456562. Its totient is φ = 2452456560.

The previous prime is 2452456541. The next prime is 2452456577. The reversal of 2452456561 is 1656542542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1353136225 + 1099320336 = 36785^2 + 33156^2 .

It is a cyclic number.

It is not a de Polignac number, because 2452456561 - 2⁹ = 2452456049 is a prime.

It is not a weakly prime, because it can be changed into another prime (2452456541) 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, 1226228280 + 1226228281.

It is an arithmetic number, because the mean of its divisors is an integer number (1226228281).

Almost surely, 2^2452456561 is an apocalyptic number.

It is an amenable number.

2452456561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2452456561 is an equidigital number, since it uses as much as digits as its factorization.

2452456561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 40.

The square root of 2452456561 is about 49522.2834792581. The cubic root of 2452456561 is about 1348.5501693482.

The spelling of 2452456561 in words is "two billion, four hundred fifty-two million, four hundred fifty-six thousand, five hundred sixty-one".