2150515505 has 4 divisors (see below), whose sum is σ = 2580618612. Its totient is φ = 1720412400.

The previous prime is 2150515463. The next prime is 2150515529. The reversal of 2150515505 is 5055150512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1210970401 + 939545104 = 34799^2 + 30652^2 .

It is not a de Polignac number, because 2150515505 - 2¹⁴ = 2150499121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 215051546 + ... + 215051555.

It is an arithmetic number, because the mean of its divisors is an integer number (645154653).

Almost surely, 2^2150515505 is an apocalyptic number.

It is an amenable number.

2150515505 is a deficient number, since it is larger than the sum of its proper divisors (430103107).

2150515505 is an equidigital number, since it uses as much as digits as its factorization.

2150515505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430103106.

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 2150515505 is about 46373.6509776834. The cubic root of 2150515505 is about 1290.7660264103.

The spelling of 2150515505 in words is "two billion, one hundred fifty million, five hundred fifteen thousand, five hundred five".