5105512440 has 192 divisors, whose sum is σ = 19032998400. Its totient is φ = 1162688256.

The previous prime is 5105512427. The next prime is 5105512441. The reversal of 5105512440 is 442155015.

5105512440 is a `hidden beast` number, since 5 + 105 + 512 + 4 + 40 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105512441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 709581 + ... + 716739.

It is an arithmetic number, because the mean of its divisors is an integer number (99130200).

Almost surely, 2^5105512440 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 5105512440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9516499200).

5105512440 is an abundant number, since it is smaller than the sum of its proper divisors (13927485960).

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

5105512440 is a wasteful number, since it uses less digits than its factorization.

5105512440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466 (or 7459 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 5105512440 is about 71452.8686617969. The cubic root of 5105512440 is about 1721.9205651582.

Adding to 5105512440 its reverse (442155015), we get a palindrome (5547667455).

The spelling of 5105512440 in words is "five billion, one hundred five million, five hundred twelve thousand, four hundred forty".