5501131506 has 72 divisors (see below), whose sum is σ = 12928390020. Its totient is φ = 1689787008.

The previous prime is 5501131451. The next prime is 5501131577. The reversal of 5501131506 is 6051311055.

5501131506 is a `hidden beast` number, since 5 + 501 + 1 + 3 + 150 + 6 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 53363025 + 5447768481 = 7305^2 + 73809^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5501131506.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2423340 + ... + 2425608.

Almost surely, 2^5501131506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5501131506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6464195010).

5501131506 is an abundant number, since it is smaller than the sum of its proper divisors (7427258514).

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

5501131506 is a wasteful number, since it uses less digits than its factorization.

5501131506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100 (or 3084 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 5501131506 is about 74169.6130905373. The cubic root of 5501131506 is about 1765.2952081606.

The spelling of 5501131506 in words is "five billion, five hundred one million, one hundred thirty-one thousand, five hundred six".