4645645553 has 2 divisors, whose sum is σ = 4645645554. Its totient is φ = 4645645552.

The previous prime is 4645645453. The next prime is 4645645561. The reversal of 4645645553 is 3555465464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3822701584 + 822943969 = 61828^2 + 28687^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645645553 - 2¹⁴ = 4645629169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4645645498 and 4645645507.

It is not a weakly prime, because it can be changed into another prime (4645645583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322822776 + 2322822777.

It is an arithmetic number, because the mean of its divisors is an integer number (2322822777).

Almost surely, 2^4645645553 is an apocalyptic number.

It is an amenable number.

4645645553 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645645553 is an equidigital number, since it uses as much as digits as its factorization.

4645645553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320000, while the sum is 47.

The square root of 4645645553 is about 68158.9726521754. The cubic root of 4645645553 is about 1668.5863654761.

The spelling of 4645645553 in words is "four billion, six hundred forty-five million, six hundred forty-five thousand, five hundred fifty-three".