4505998613 has 2 divisors, whose sum is σ = 4505998614. Its totient is φ = 4505998612.

The previous prime is 4505998559. The next prime is 4505998661. The reversal of 4505998613 is 3168995054.

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., 4072609489 + 433389124 = 63817^2 + 20818^2 .

It is a cyclic number.

It is not a de Polignac number, because 4505998613 - 2²² = 4501804309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4505998513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2252999306 + 2252999307.

It is an arithmetic number, because the mean of its divisors is an integer number (2252999307).

Almost surely, 2^4505998613 is an apocalyptic number.

It is an amenable number.

4505998613 is a deficient number, since it is larger than the sum of its proper divisors (1).

4505998613 is an equidigital number, since it uses as much as digits as its factorization.

4505998613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 4505998613 is about 67126.7354561504. The cubic root of 4505998613 is about 1651.6968907126.

The spelling of 4505998613 in words is "four billion, five hundred five million, nine hundred ninety-eight thousand, six hundred thirteen".