5561077531 has 2 divisors, whose sum is σ = 5561077532. Its totient is φ = 5561077530.

The previous prime is 5561077477. The next prime is 5561077537. The reversal of 5561077531 is 1357701655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5561077531 - 2¹¹ = 5561075483 is a prime.

It is a super-2 number, since 2×5561077531² = 61851166611586111922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5561077537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780538765 + 2780538766.

It is an arithmetic number, because the mean of its divisors is an integer number (2780538766).

Almost surely, 2^5561077531 is an apocalyptic number.

5561077531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5561077531 is an equidigital number, since it uses as much as digits as its factorization.

5561077531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110250, while the sum is 40.

The square root of 5561077531 is about 74572.6325872971. The cubic root of 5561077531 is about 1771.6842184473.

The spelling of 5561077531 in words is "five billion, five hundred sixty-one million, seventy-seven thousand, five hundred thirty-one".