4555610561 has 2 divisors, whose sum is σ = 4555610562. Its totient is φ = 4555610560.

The previous prime is 4555610537. The next prime is 4555610567. The reversal of 4555610561 is 1650165554.

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., 4510465600 + 45144961 = 67160^2 + 6719^2 .

It is a cyclic number.

It is not a de Polignac number, because 4555610561 - 2¹⁴ = 4555594177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4555610567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277805280 + 2277805281.

It is an arithmetic number, because the mean of its divisors is an integer number (2277805281).

Almost surely, 2^4555610561 is an apocalyptic number.

It is an amenable number.

4555610561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4555610561 is an equidigital number, since it uses as much as digits as its factorization.

4555610561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 4555610561 is about 67495.2632486162. The cubic root of 4555610561 is about 1657.7366164086.

The spelling of 4555610561 in words is "four billion, five hundred fifty-five million, six hundred ten thousand, five hundred sixty-one".