1500555550115 has 4 divisors (see below), whose sum is σ = 1800666660144. Its totient is φ = 1200444440088.

The previous prime is 1500555550097. The next prime is 1500555550139. The reversal of 1500555550115 is 5110555550051.

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

It is a cyclic number.

It is not a de Polignac number, because 1500555550115 - 2²⁶ = 1500488441251 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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150055555007 + ... + 150055555016.

It is an arithmetic number, because the mean of its divisors is an integer number (450166665036).

Almost surely, 2^{1500555550115} is an apocalyptic number.

1500555550115 is a deficient number, since it is larger than the sum of its proper divisors (300111110029).

1500555550115 is an equidigital number, since it uses as much as digits as its factorization.

1500555550115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300111110028.

The product of its (nonzero) digits is 78125, while the sum is 38.

The spelling of 1500555550115 in words is "one trillion, five hundred billion, five hundred fifty-five million, five hundred fifty thousand, one hundred fifteen".