5105112500 has 72 divisors (see below), whose sum is σ = 11245764600. Its totient is φ = 2027600000.

The previous prime is 5105112479. The next prime is 5105112539. The reversal of 5105112500 is 52115015.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 4701022096 + 404090404 = 68564^2 + 20102^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1861130 + ... + 1863870.

It is an arithmetic number, because the mean of its divisors is an integer number (156191175).

Almost surely, 2^5105112500 is an apocalyptic number.

5105112500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5105112500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5622882300).

5105112500 is an abundant number, since it is smaller than the sum of its proper divisors (6140652100).

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

5105112500 is a wasteful number, since it uses less digits than its factorization.

5105112500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2897 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 5105112500 is about 71450.0699789720. The cubic root of 5105112500 is about 1721.8756018039.

Adding to 5105112500 its reverse (52115015), we get a palindrome (5157227515).

The spelling of 5105112500 in words is "five billion, one hundred five million, one hundred twelve thousand, five hundred".