5319659561 has 4 divisors (see below), whose sum is σ = 5327448912. Its totient is φ = 5311870212.

The previous prime is 5319659531. The next prime is 5319659599. The reversal of 5319659561 is 1659569135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5319659561 - 2¹⁴ = 5319643177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5319659531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893651 + ... + 3895016.

It is an arithmetic number, because the mean of its divisors is an integer number (1331862228).

Almost surely, 2^5319659561 is an apocalyptic number.

It is an amenable number.

5319659561 is a deficient number, since it is larger than the sum of its proper divisors (7789351).

5319659561 is an equidigital number, since it uses as much as digits as its factorization.

5319659561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789350.

The product of its digits is 1093500, while the sum is 50.

The square root of 5319659561 is about 72935.9963324009. The cubic root of 5319659561 is about 1745.6665090475. Note that the first 3 decimals are identical.

The spelling of 5319659561 in words is "five billion, three hundred nineteen million, six hundred fifty-nine thousand, five hundred sixty-one".