5105521450 has 24 divisors (see below), whose sum is σ = 9626362668. Its totient is φ = 2014231680.

The previous prime is 5105521423. The next prime is 5105521457. The reversal of 5105521450 is 541255015.

It can be written as a sum of positive squares in 6 ways, for example, as 2054174329 + 3051347121 = 45323^2 + 55239^2 .

It is not an unprimeable number, because it can be changed into a prime (5105521457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695737 + ... + 703036.

Almost surely, 2^5105521450 is an apocalyptic number.

5105521450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5105521450 is a deficient number, since it is larger than the sum of its proper divisors (4520841218).

5105521450 is a wasteful number, since it uses less digits than its factorization.

5105521450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398858 (or 1398853 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 5105521450 is about 71452.9317103224. The cubic root of 5105521450 is about 1721.9215780826.

Adding to 5105521450 its reverse (541255015), we get a palindrome (5646776465).

The spelling of 5105521450 in words is "five billion, one hundred five million, five hundred twenty-one thousand, four hundred fifty".