5105611560 has 128 divisors (see below), whose sum is σ = 17527726080. Its totient is φ = 1165479168.

The previous prime is 5105611517. The next prime is 5105611561. The reversal of 5105611560 is 651165015.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (5105611561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721399 + ... + 728441.

It is an arithmetic number, because the mean of its divisors is an integer number (136935360).

Almost surely, 2^5105611560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5105611560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8763863040).

5105611560 is an abundant number, since it is smaller than the sum of its proper divisors (12422114520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5105611560 is a wasteful number, since it uses less digits than its factorization.

5105611560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927 (or 7923 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 5105611560 is about 71453.5622624933. The cubic root of 5105611560 is about 1721.9317083858.

Adding to 5105611560 its reverse (651165015), we get a palindrome (5756776575).

The spelling of 5105611560 in words is "five billion, one hundred five million, six hundred eleven thousand, five hundred sixty".