5661314539 has 2 divisors, whose sum is σ = 5661314540. Its totient is φ = 5661314538.

The previous prime is 5661314521. The next prime is 5661314573. The reversal of 5661314539 is 9354131665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5661314539 - 2⁷ = 5661314411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5661314495 and 5661314504.

It is not a weakly prime, because it can be changed into another prime (5661314509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830657269 + 2830657270.

It is an arithmetic number, because the mean of its divisors is an integer number (2830657270).

Almost surely, 2^5661314539 is an apocalyptic number.

5661314539 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661314539 is an equidigital number, since it uses as much as digits as its factorization.

5661314539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 43.

The square root of 5661314539 is about 75241.7074434120. The cubic root of 5661314539 is about 1782.2656143066.

The spelling of 5661314539 in words is "five billion, six hundred sixty-one million, three hundred fourteen thousand, five hundred thirty-nine".