5499634561 has 2 divisors, whose sum is σ = 5499634562. Its totient is φ = 5499634560.

The previous prime is 5499634537. The next prime is 5499634661. The reversal of 5499634561 is 1654369945.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5188464961 + 311169600 = 72031^2 + 17640^2 .

It is a cyclic number.

It is not a de Polignac number, because 5499634561 - 2⁷ = 5499634433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5499634499 and 5499634508.

It is not a weakly prime, because it can be changed into another prime (5499634061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2749817280 + 2749817281.

It is an arithmetic number, because the mean of its divisors is an integer number (2749817281).

Almost surely, 2^5499634561 is an apocalyptic number.

It is an amenable number.

5499634561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5499634561 is an equidigital number, since it uses as much as digits as its factorization.

5499634561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 52.

The square root of 5499634561 is about 74159.5210407942. The cubic root of 5499634561 is about 1765.1350720406.

The spelling of 5499634561 in words is "five billion, four hundred ninety-nine million, six hundred thirty-four thousand, five hundred sixty-one".