5999362561 has 2 divisors, whose sum is σ = 5999362562. Its totient is φ = 5999362560.

The previous prime is 5999362553. The next prime is 5999362571. The reversal of 5999362561 is 1652639995.

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., 3509851536 + 2489511025 = 59244^2 + 49895^2 .

It is a cyclic number.

It is not a de Polignac number, because 5999362561 - 2³ = 5999362553 is a prime.

It is a super-2 number, since 2×5999362561² = 71984702276656957442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5999362531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2999681280 + 2999681281.

It is an arithmetic number, because the mean of its divisors is an integer number (2999681281).

Almost surely, 2^5999362561 is an apocalyptic number.

It is an amenable number.

5999362561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5999362561 is an equidigital number, since it uses as much as digits as its factorization.

5999362561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3936600, while the sum is 55.

The square root of 5999362561 is about 77455.5521638055. The cubic root of 5999362561 is about 1817.0562403568.

The spelling of 5999362561 in words is "five billion, nine hundred ninety-nine million, three hundred sixty-two thousand, five hundred sixty-one".