15006505050 has 72 divisors (see below), whose sum is σ = 40368292380. Its totient is φ = 3996691200.

The previous prime is 15006505009. The next prime is 15006505061. The reversal of 15006505050 is 5050560051.

15006505050 is a `hidden beast` number, since 1 + 5 + 0 + 0 + 650 + 5 + 0 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 5841697761 + 9164807289 = 76431^2 + 95733^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 343440 + ... + 384660.

Almost surely, 2^15006505050 is an apocalyptic number.

15006505050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15006505050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20184146190).

15006505050 is an abundant number, since it is smaller than the sum of its proper divisors (25361787330).

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

15006505050 is a wasteful number, since it uses less digits than its factorization.

15006505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42048 (or 42040 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 15006505050 in words is "fifteen billion, six million, five hundred five thousand, fifty".