5110555505561 has 16 divisors (see below), whose sum is σ = 5632085780928. Its totient is φ = 4598542632000.

The previous prime is 5110555505441. The next prime is 5110555505563. The reversal of 5110555505561 is 1655055550115.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5110555505561 is a prime.

It is a super-2 number, since 2×5110555505561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5110555505563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2907050 + ... + 4321116.

It is an arithmetic number, because the mean of its divisors is an integer number (352005361308).

Almost surely, 2^{5110555505561} is an apocalyptic number.

It is an amenable number.

5110555505561 is a deficient number, since it is larger than the sum of its proper divisors (521530275367).

5110555505561 is a wasteful number, since it uses less digits than its factorization.

5110555505561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417432.

The product of its (nonzero) digits is 468750, while the sum is 44.

The spelling of 5110555505561 in words is "five trillion, one hundred ten billion, five hundred fifty-five million, five hundred five thousand, five hundred sixty-one".