5551561711 has 2 divisors, whose sum is σ = 5551561712. Its totient is φ = 5551561710.

The previous prime is 5551561699. The next prime is 5551561751. The reversal of 5551561711 is 1171651555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5551561711 - 2⁵ = 5551561679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5551561751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775780855 + 2775780856.

It is an arithmetic number, because the mean of its divisors is an integer number (2775780856).

Almost surely, 2^5551561711 is an apocalyptic number.

5551561711 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551561711 is an equidigital number, since it uses as much as digits as its factorization.

5551561711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26250, while the sum is 37.

The square root of 5551561711 is about 74508.8029094549. The cubic root of 5551561711 is about 1770.6731042481.

The spelling of 5551561711 in words is "five billion, five hundred fifty-one million, five hundred sixty-one thousand, seven hundred eleven".